create implication digitigrade_footwear (323) -> furgonomic_footwear (852)
create implication furgonomic_footwear (852) -> footwear (301761)
create implication furgonomic_footwear (852) -> furgonomics (63147)
remove implication digitigrade_footwear (323) -> footwear (301761)
remove implication digitigrade_footwear (323) -> furgonomics (63147)