premise: Here we have a guy using a pressure washer on the sidewalk.
hypothesis: A guy is washing bird poop off of the sidewalk.
explanation_1: because he is using a pressure washer doesn't necessarily mean he is washing bird poop.
explanation_2: It is not know that the man is using the pressure washer to wash away bird poop.
explanation_3: The man may not be using the pressure walker to specifically wash bird poop off the sidewalk.
premise_logic: exists e1 e2 x1 x2 x3 x4 x5.(n_sidewalk(x5) & r_here(e2) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & Theme(e1,x1) & Actor(e1,x3) & v_use(e1) & on(x1,x5) & n_washer(x1) & of(x1,x4) & n_pressure(x4) & (x2 = x3) & n_guy(x2) & n_person(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(n_sidewalk(x4) & of(e1,x4) & r_off(e1) & Theme(e1,x2) & Actor(e1,x1) & v_wash(e1) & n_poop(x2) & of(x2,x3) & n_bird(x3) & n_guy(x1))