create implication frenum_ladder (3573) -> ladder_piercing (3929)
create implication guiche_ladder (70) -> ladder_piercing (3929)
create implication guiche_ladder (70) -> guiche_piercing (1035)
create implication scrotum_ladder (59) -> ladder_piercing (3929)
create implication scrotum_ladder (59) -> scrotum_piercing (1345)
create implication sheath_ladder (4) -> ladder_piercing (3929)
create implication sheath_ladder (4) -> sheath_piercing (1551)