create implication identical_twins (334) -> twins (0)
create implication fraternal_twins (583) -> twins (0)
create implication twin_sisters (29) -> twins (0)
create implication twin_sisters (29) -> sibling (0)
create implication twin_sisters (29) -> sisters (0)
create implication twin_sisters (29) -> 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)