premise: Two surgeons performing a surgery.
hypothesis: The surgeons had been in surgery for hours.
explanation_1: Surgeons performing a surgery may have just started and need not have been in surgery for hours.
premise_logic: exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_surgery(x3) & (x1 = x2) & n_surgeon(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2.(n_surgeon(x1) & for(p1,x2) & n_hour(x2) & exists x3.(in(x1,x3) & n_surgery(x3)))
premise_sim: exists e1 x1 x2 x3.(v_perform(e1) & n_surgery(x3) & n_surgeon(x1) & card_eq_2(x1) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists p1 x1 x2.(n_surgeon(x1) & n_hour(x2) & for(p1,x2) & exists x3.(n_surgery(x3) & in(x1,x3)))