premise: A guy riding a motorcycle near junk cars
hypothesis: The man is test driving a motorcycle to decide whether or not he will buy it.
explanation_1: You can not infer the man is test driving.
explanation_2: Just because a guy riding a motorcycle near junk cars doesn't mean the man is test driving a motorcycle.
explanation_3: Not every guys is a man. Riding a motorcycle doesn't imply test driving it.
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: (x)