remove alias hooffoots (0) -> hooved_toes (1547)
remove implication hooved_toes (1547) -> hooves (130452)
remove implication hooved_digitigrade (168) -> hooved_toes (1547)
remove implication hooved_digitigrade (168) -> digitigrade (107541)
remove implication hooved_plantigrade (833) -> hooved_toes (1547)