premise: A man with a backpack is observing an alligator.
hypothesis: The man is looking
explanation_1: In order for a man to be observing an alligator, the man must be looking.
premise_logic: exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_observe(e1) & n_alligator(x3) & with(x1,x2) & n_backpack(x2) & n_man(x1))
hypothesis_logic: exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_look(e1))
premise_sim: exists e1 x1 x2 x3.(with(x1,x2) & v_observe(e1) & n_man(x1) & n_backpack(x2) & n_alligator(x3) & Theme(e1,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_look(e1) & n_man(x1) & Actor(e1,x1))