premise: A man biking down a tunnel.
hypothesis: A person is on a bike.
explanation_1: A man is a person, and to ride a bike down a tunnel you must be on a bike.
explanation_2: Man is a person, and on a bike implies biking.
explanation_3: A man is riding a bike
premise_logic: exists e1 s1 x1 x2 x3.(a_topic(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_bike(e1) & n_tunnel(x3) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_bike(x2)) & n_person(x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_bike(e1) & n_tunnel(x3) & n_man(x1) & a_topic(x1) & a_down(s1) & Theme(e1,x3) & Manner(e1,s1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1.(n_person(x1) & exists x2.(on(x1,x2) & n_bike(x2)))