create implication child_swap (133) -> relative_swap (186)
create implication sibling_swap (68) -> relative_swap (186)
create implication son_swap (94) -> child_swap (133)
create implication daughter_swap (30) -> child_swap (133)
create implication brother_swap (8) -> sibling_swap (68)
create implication sister_swap (3) -> sibling_swap (68)