premise: Seven men are preparing to operate a helicopter
hypothesis: Seven men are getting ready to fly an airplane.
explanation_1: Men cannot be getting ready to fly an airplane while preparing to operate a helicopter. An airplane is not a helicopter.
explanation_2: The entity can be either a helicopter or an airplane.
explanation_3: A helicopter is different from an airplane.
premise_logic: exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_operate(e2) & n_helicopter(x3)) & n_man(x1) & (x1 = x2) & ne_nam_seven(x2))
hypothesis_logic: exists e1 p1 x1 x2.(exists p2 s1.(Topic(s1,p2) & Actor(s1,x1) & a_ready(s1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_fly(e2) & n_airplane(x3))) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_man(x1) & (x1 = x2) & ne_nam_seven(x2))
premise_sim: exists e1 p1 x1 x2.(v_prepare(e1) & ne_nam_seven(x2) & n_man(x1) & exists e2 x3.(v_operate(e2) & n_helicopter(x3) & Theme(e2,x3) & Actor(e2,x1)) & Topic(e1,p1) & Actor(e1,x1) & (x1 = x2))
hypothesis_sim: exists e1 p1 x1 x2.(v_get(e1) & ne_nam_seven(x2) & n_man(x1) & exists p2 s1.(exists e2 x3.(v_fly(e2) & n_airplane(x3) & Theme(e2,x3) & Actor(e2,x1)) & a_ready(s1) & Topic(s1,p2) & Actor(s1,x1)) & Topic(e1,p1) & Actor(e1,x1) & (x1 = x2))