Predicate Consequent Reason
ultimate_madoka (328) kaname_madoka (1374) A specific version of the same character
underwater (1149) water (13654) Tag Discussion forum (1459), pages 67-68
unicorn (33) horse (254) A unicorn is a mythical type of horse
utawarerumono_itsuwari_no_kamen (60) utawarerumono (185) Parent copyright
verniy_(kancolle) (90) hibiki_(kancolle) (355) A specific version of the same character
violin (305) instrument (2497) Because instrument
vocaloid_china (286) vocaloid (20223) Subset of same copyright.
volleyball (75) sport (420)
waterfall (381) water (13654) By Suggestion.
watermelon (288) fruit (2624) watermelon is both a fruit and a berry (called a pepo) http://en.wikipedia.org/wiki/Watermelon
witch_hat (1082) hat (17269)
wolf (160) animal (11661) Because a wolf is an animal
yes!_precure_5 (21) precure (448) Series to Franchise
yes!_precure_5_gogo! (3) yes!_precure_5 (21) Sequel to prequel
yukata (1081) japanese_clothes (11629)
yuki_miku (280) hatsune_miku (13575) seasonal
z_gundam (1) mobile_suit_gundam (665) Series to franchise