premise: A man is working on steel.
hypothesis: The man is working.
explanation_1: A man working on steel is working in general.
premise_logic: exists e1 x1 x2.(on(e1,x2) & n_steel(x2) & Actor(e1,x1) & v_work(e1) & n_man(x1))
hypothesis_logic: exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_work(e1))
premise_sim: exists e1 x1 x2.(v_work(e1) & on(e1,x2) & n_steel(x2) & n_man(x1) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_work(e1) & n_man(x1) & Actor(e1,x1))