User:Boissière/Categories with first word plural differences

First category	Second category
Category:Arts_awards	Category:Art_awards
Category:B-Class_sports_articles	Category:B-Class_Ports_articles
Category:Banks_of_China	Category:Bank_of_China
Category:Congregations_of_Holy_Cross	Category:Congregation_of_Holy_Cross
Category:Figurines_albums	Category:Figurine_albums
Category:GA-Class_sports_articles	Category:GA-Class_Ports_articles
Category:Governments_of_Ireland	Category:Government_of_Ireland
Category:Governments_of_New_Zealand	Category:Government_of_New_Zealand
Category:Hibernians_F.C._players	Category:Hibernian_F.C._players
Category:Karas_Region	Category:Kara_Region
Category:Linguistics_educators	Category:Linguistic_educators
Category:List-Class_sports_articles	Category:List-Class_Ports_articles
Category:Margraves_of_Septimania	Category:Margrave_of_Septimania
Category:Middle-earth_words	Category:Middle-earth_swords
Category:Moons_in_fiction	Category:Moon_in_fiction
Category:News_media	Category:New_media
Category:Northerns_cricketers	Category:Northern_cricketers
Category:Seas_of_Japan	Category:Sea_of_Japan
Category:Spoons_albums	Category:Spoon_albums
Category:Start-Class_sports_articles	Category:Start-Class_Ports_articles
Category:States_of_Mexico	Category:State_of_Mexico
Category:Stations_of_Nagoya_Railroad	Category:Station_of_Nagoya_Railroad
Category:Stub-Class_sports_articles	Category:Stub-Class_Ports_articles
Category:Swords_albums	Category:Sword_albums
Category:Graphic_file_formats	Category:Graphics_file_formats
Category:Unassessed_Ports_articles	Category:Unassessed_sports_articles
Category:Governments_of_Italy	Category:Government_of_Italy
Category:Sports_in_Montreal	Category:Sport_in_Montreal
Category:Sports_in_Taiwan	Category:Sport_in_Taiwan
Category:Deaths_by_country	Category:Death_by_country
Category:WikiProject_Ports_articles	Category:WikiProject_Sports_articles
Category:Wikipedian_who_use_Emacs	Category:Wikipedians_who_use_Emacs
Category:Wikipedians_Chelsea_F.C._fans	Category:Wikipedian_Chelsea_F.C._fans
Category:Parliament_of_Malaysia	Category:Parliaments_of_Malaysia
Category:Hibernians_F.C.	Category:Hibernian_F.C.
Category:Sport_by_country	Category:Sports_by_country
Category:Games_user_templates	Category:Game_user_templates
Category:Cabinets_of_the_Netherlands	Category:Cabinet_of_the_Netherlands
Category:Albums_articles_needing_attention	Category:Album_articles_needing_attention
Category:WikiProject_Ports_participants	Category:WikiProject_Sports_participants
Category:Olympics_Games_broadcasters	Category:Olympic_Games_broadcasters
Category:Comic_artists	Category:Comics_artists
Category:List_of_heavy_metal_bands	Category:Lists_of_heavy_metal_bands
Category:Sports_in_Lebanon	Category:Sport_in_Lebanon
Category:Arts_festivals	Category:Art_festivals
Category:WikiProject_Ports_templates	Category:WikiProject_Sports_templates
Category:NA-Class_Ports_articles	Category:NA-Class_sports_articles
Category:NA-importance_Ports_articles	Category:NA-importance_sports_articles
Category:Unknown-importance_Ports_articles	Category:Unknown-importance_sports_articles
Category:C-Class_Ports_articles	Category:C-Class_sports_articles
Category:Material_science	Category:Materials_science
Category:Songs_articles_by_quality	Category:Song_articles_by_quality
Category:Chinese_pies	Category:Chinese_spies
Category:Polish_printers	Category:Polish_sprinters
Category:Frontiers_Records_albums	Category:Frontier_Records_albums
Category:Highlands_articles_missing_geocoordinate_data	Category:Highland_articles_missing_geocoordinate_data
Category:FA-Class_SCUBA_articles	Category:FA-Class_Cuba_articles
Category:C-Class_SCUBA_articles	Category:C-Class_Cuba_articles
Category:NA-Class_SCUBA_articles	Category:NA-Class_Cuba_articles
Category:Stub-Class_SCUBA_articles	Category:Stub-Class_Cuba_articles
Category:Start-Class_SCUBA_articles	Category:Start-Class_Cuba_articles
Category:B-Class_SCUBA_articles	Category:B-Class_Cuba_articles
Category:GA-Class_SCUBA_articles	Category:GA-Class_Cuba_articles
Category:List-Class_SCUBA_articles	Category:List-Class_Cuba_articles
Category:System_Engineering	Category:Systems_engineering
Category:Girls_(band)_albums	Category:Girl_(band)_albums
Category:Tadpoles_(band)_albums	Category:Tadpole_(band)_albums
Category:Peerage_of_the_United_Kingdom	Category:Peerages_of_the_United_Kingdom
Category:Crime_by_year	Category:Crimes_by_year
Category:Governments_of_Australia	Category:Government_of_Australia
Category:Philippine_films	Category:Philippines_films
Category:Foods_infobox_templates	Category:Food_infobox_templates
Category:Lists_of_women_writers	Category:List_of_women_writers
Category:Hercule_class_ships_of_the_line	Category:Hercules_class_ships_of_the_line
Category:Lists_of_companies_of_India	Category:List_of_companies_of_India
Category:Philippines_culture	Category:Philippine_culture
Category:Art_in_Northern_Ireland	Category:Arts_in_Northern_Ireland
Category:Bridges_articles_by_quality	Category:Bridge_articles_by_quality
Category:Article_requiring_a_direct_DNB_link	Category:Articles_requiring_a_direct_DNB_link
Category:Dukes_of_Sessa	Category:Duke_of_Sessa
Category:Indian_printers	Category:Indian_sprinters
Category:Wikipedian_in_Canada	Category:Wikipedians_in_Canada
Category:Governor_of_New_South_Wales	Category:Governors_of_New_South_Wales
Category:DarkSun_albums	Category:Dark_Suns_albums
Category:Art_centers_in_Minnesota	Category:Arts_centers_in_Minnesota
Category:State_of_Burma	Category:States_of_Burma
Category:Homicide_by_motor_vehicle	Category:Homicides_by_motor_vehicle
Category:Oceans_templates	Category:Ocean_templates
Category:State_of_Mexico_templates	Category:States_of_Mexico_templates
Category:Gulfs_of_Mexico	Category:Gulf_of_Mexico
Category:Turtles_articles_by_quality	Category:Turtle_articles_by_quality
Category:Screenshots_of_Microsoft_Office_for_Windows	Category:Screenshot_of_Microsoft_Office_for_Windows
Category:FL-Class_SCUBA_articles	Category:FL-Class_Cuba_articles
Category:Flag_of_Romania	Category:Flags_of_Romania
Category:Sport_teams_in_Ottawa	Category:Sports_teams_in_Ottawa
Category:Sports_in_Manila	Category:Sport_in_Manila
Category:Econometric_software	Category:Econometrics_software
Category:Bank_of_Japan	Category:Banks_of_Japan
Category:Neighborhood_of_Kampala	Category:Neighborhoods_of_Kampala
Category:Equestrian_at_the_1900_Summer_Olympics	Category:Equestrians_at_the_1900_Summer_Olympics
Category:Equestrian_at_the_1912_Summer_Olympics	Category:Equestrians_at_the_1912_Summer_Olympics
Category:Equestrian_at_the_1920_Summer_Olympics	Category:Equestrians_at_the_1920_Summer_Olympics
Category:Equestrian_at_the_1924_Summer_Olympics	Category:Equestrians_at_the_1924_Summer_Olympics
Category:Equestrian_at_the_1964_Summer_Olympics	Category:Equestrians_at_the_1964_Summer_Olympics
Category:Equestrian_at_the_2004_Summer_Olympics	Category:Equestrians_at_the_2004_Summer_Olympics
Category:Equestrian_at_the_2008_Summer_Olympics	Category:Equestrians_at_the_2008_Summer_Olympics
Category:Mayor_of_Keelung	Category:Mayors_of_Keelung
Category:Lithuanian_printers	Category:Lithuanian_sprinters
Category:Equestrian_at_the_2000_Summer_Olympics	Category:Equestrians_at_the_2000_Summer_Olympics
Category:Bank_of_Canada	Category:Banks_of_Canada
Category:Peoples_of_the_American_Old_West	Category:People_of_the_American_Old_West
Category:Sistar_albums	Category:Sistars_albums
Category:Girls_Next_Door_songs	Category:Girl_Next_Door_songs
Category:Equestrians_at_the_2011_Pan_American_Games	Category:Equestrian_at_the_2011_Pan_American_Games
Category:Sports_in_Bihar	Category:Sport_in_Bihar
Category:Wikipedians_translators	Category:Wikipedian_translators
Category:Lists_articles_by_quality	Category:List_articles_by_quality
Category:Rolling_tock_of_India	Category:Rolling_stock_of_India
Category:Art_competitions	Category:Arts_competitions
Category:Irish_printers	Category:Irish_sprinters
Category:Methodists_ministers	Category:Methodist_ministers
Category:Sports_in_Nairobi	Category:Sport_in_Nairobi
Category:Artists_collectives	Category:Artist_collectives
Category:Mammals_articles_by_quality	Category:Mammal_articles_by_quality
Category:Equestrian_at_the_2012_Summer_Olympics	Category:Equestrians_at_the_2012_Summer_Olympics
Category:Equestrian_at_the_1952_Summer_Olympics	Category:Equestrians_at_the_1952_Summer_Olympics
Category:Comics_book_covers	Category:Comic_book_covers
Category:Bishop_of_Plasencia	Category:Bishops_of_Plasencia
Category:Airline_of_France	Category:Airlines_of_France
Category:Sport_in_Kaohsiung	Category:Sports_in_Kaohsiung
Category:Sounds_by_country	Category:Sound_by_country
Category:Equestrian_at_the_1928_Summer_Olympics	Category:Equestrians_at_the_1928_Summer_Olympics
Category:Roses_of_Tralee	Category:Rose_of_Tralee
Category:Ancient_ports	Category:Ancient_sports
Category:Graduate_of_the_Royal_Military_Academy,_Woolwich	Category:Graduates_of_the_Royal_Military_Academy,_Woolwich
Category:Poet_Laureate_of_Alabama	Category:Poets_Laureate_of_Alabama
Category:Infrastructures_completed_in_1840	Category:Infrastructure_completed_in_1840
Category:Israelis_Jews	Category:Israeli_Jews
Category:Lord_of_IJsselstein	Category:Lords_of_IJsselstein
Category:Equestrian_at_the_2012_Summer_Paralympics	Category:Equestrians_at_the_2012_Summer_Paralympics
Category:Equestrian_at_the_2008_Summer_Paralympics	Category:Equestrians_at_the_2008_Summer_Paralympics
Category:Sports_in_Brazil_by_city	Category:Sport_in_Brazil_by_city
Category:Governor_of_Gujarat	Category:Governors_of_Gujarat
Category:Psychedelics_drugs	Category:Psychedelic_drugs
Category:Sport_leagues_in_Canada	Category:Sports_leagues_in_Canada
Category:Constitution_of_Ukraine	Category:Constitutions_of_Ukraine
Category:Sport_leagues_established_in_2011	Category:Sports_leagues_established_in_2011
Category:Flag_of_Louisiana	Category:Flags_of_Louisiana
Category:Novel_set_in_Korea	Category:Novels_set_in_Korea
Category:Hospitals_articles_needing_attention	Category:Hospital_articles_needing_attention
Category:List_of_buildings_and_structures_in_Bangladesh	Category:Lists_of_buildings_and_structures_in_Bangladesh
Category:Hindus_temple_in_bihar	Category:Hindu_temple_in_bihar
Category:List_of_Bhutanese_Media	Category:Lists_of_Bhutanese_media
Category:Rapes_in_the_United_States	Category:Rape_in_the_United_States
Category:Kidnapping_in_the_United_States	Category:Kidnappings_in_the_United_States
Category:Bridge_in_Austria	Category:Bridges_in_Austria
Category:List_of_federations	Category:Lists_of_federations
Category:American_cience_fiction_conventions	Category:American_science_fiction_conventions
Category:Minims_(religious_order)	Category:Minim_(religious_order)
Category:Sports_in_El_Salvador	Category:Sport_in_El_Salvador
Category:Island_by_country	Category:Islands_by_country
Category:Screenshot_of_Microsoft_Office_for_Mac	Category:Screenshots_of_Microsoft_Office_for_Mac
Category:Marshal_of_the_Soviet_Union	Category:Marshals_of_the_Soviet_Union
Category:Murders_in_Australia	Category:Murder_in_Australia
Category:Christian_by_nationality	Category:Christians_by_nationality
Category:Seals_of_Philippine_provinces	Category:Seal_of_Philippine_provinces

There are 166 entries in this list.