premise: Man standing on a tricycle riding in front of a crowd.
hypothesis: A man is on a bike.
explanation_1: a man rides bike by standing in fornt of a crowd
explanation_2: A man is standing and riding a bike in front of a crowd.
explanation_3: If a man is on a tricycle, some might say the man is on a bike.
premise_logic: exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & on(x1,x3) & in(x3,x5) & of(x5,x6) & n_crowd(x6) & n_front(x5) & n_riding(x3) & of(x3,x4) & n_tricycle(x4) & n_standing(x1) & of(x1,x2) & n_man(x2))
hypothesis_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_bike(x2)) & n_man(x1))