premise: A man performing auto repair in front of a building.
hypothesis: The man is a mechanic.
explanation_1: performing auto repair doesn't means that The man is a mechanic.
explanation_2: One doesn't have to a mechanic to perform auto repair.
explanation_3: Just because the man is performing auto repair doesn't mean that he's a mechanic.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(e1,x5) & of(x5,x6) & n_building(x6) & n_front(x5) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_repair(x3) & of(x3,x4) & n_auto(x4) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_mechanic(x2)))
premise_sim: exists e1 x1 x2 x3 x4 x5 x6.(v_perform(e1) & of(x5,x6) & of(x3,x4) & n_repair(x3) & n_man(x1) & n_front(x5) & n_building(x6) & n_auto(x4) & in(e1,x5) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1.(n_man(x1) & exists x2.(n_mechanic(x2) & (x1 = x2)))