create implication child_swap (106) -> relative_swap (147)
create implication sibling_swap (58) -> relative_swap (147)
create implication son_swap (78) -> child_swap (106)
create implication daughter_swap (24) -> child_swap (106)
create implication brother_swap (6) -> sibling_swap (58)
create implication sister_swap (3) -> sibling_swap (58)