premise: A surgeon is performing an open surgery.
hypothesis: A doctor is doing surgery.
explanation_1: A surgeon is a doctor.
explanation_2: Surgeon is a doctor, and open surgery is a type of surgery.
explanation_3: A surgeon is a special kind of doctor. Performing is synonym of doing.
premise_logic: exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_surgery(x2) & a_open(s1) & Theme(s1,x2) & n_surgeon(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_surgery(x2) & n_doctor(x1))