premise: Two doctors perform an operation.
hypothesis: The doctors are operating.
explanation_1: doctors perform an operation. is same as the doctors are operating.
premise_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_operation(x2) & n_doctor(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1.(n_doctor(x1) & Actor(e1,x1) & v_operate(e1))
premise_sim: exists e1 x1 x2.(v_perform(e1) & n_operation(x2) & n_doctor(x1) & card_eq_2(x1) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_operate(e1) & n_doctor(x1) & Actor(e1,x1))