premise: A guy riding a motorcycle near junk cars
hypothesis: A man is sitting on a parked motorcycle waiting for his friend.
explanation_1: The man can't be riding a motorcycle while sitting by it.
explanation_2: One can't be riding and not riding at the same time
explanation_3: The subject cannot be riding a motorcycle and sitting on a parked motorcycle simultaneously.
premise_logic: exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & near(x3,x4) & n_car(x4) & of(x4,x5) & n_junk(x5) & n_motorcycle(x3) & (x1 = x2) & n_guy(x1))
hypothesis_logic: exists e2 e1 s1 x1 x2 x3.(for(e1,e2) & for(e2,x3) & n_friend(x3) & of(x3,x1) & n_male(x1) & Actor(e2,x1) & v_wait(e2) & on(e1,x2) & n_motorcycle(x2) & a_parked(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))