create implication digitigrade_footwear (310) -> furgonomic_footwear (787)
create implication furgonomic_footwear (787) -> footwear (285807)
create implication furgonomic_footwear (787) -> furgonomics (59826)
remove implication digitigrade_footwear (310) -> footwear (285807)
remove implication digitigrade_footwear (310) -> furgonomics (59826)