create implication taur_upper_pregnancy (52) -> taur (18408)
create implication taur_upper_pregnancy (52) -> pregnant (40328)
create implication taur_lower_pregnancy (180) -> taur (18408)
create implication taur_lower_pregnancy (180) -> pregnant (40328)
create implication taur_double_pregnancy (42) -> taur_upper_pregnancy (52)
create implication taur_double_pregnancy (42) -> taur_lower_pregnancy (180)