create implication identical_twins (342) -> twins (0)
create implication fraternal_twins (586) -> twins (0)
create implication twin_sisters (31) -> twins (0)
create implication twin_sisters (31) -> sibling (0)
create implication twin_sisters (31) -> sisters (0)
create implication twin_sisters (31) -> sister (0)
create implication twin_brothers (46) -> twins (0)
create implication twin_brothers (46) -> sibling (0)
create implication twin_brothers (46) -> brothers (0)
create implication twin_brothers (46) -> brother (0)