premise: A man is riding a bike along a dirt trail.
hypothesis: The man is bike riding.
explanation_1: If a man is riding a bike, he is definitely bike-riding.
explanation_2: Along a dirt trail implies the man is bike riding.
explanation_3: If he is riding a bike, he is bike riding.
premise_logic: exists e1 x1 x2 x3 x4.(along(e1,x3) & n_trail(x3) & of(x3,x4) & n_dirt(x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_man(x1) & exists x2 x3.((x1 = x2) & n_riding(x2) & of(x2,x3) & n_bike(x3)))