premise: A man riding a bicycle on pavement with graffiti.
hypothesis: The man is in a race
explanation_1: You can ride a bicycle and not be in a race.
explanation_2: We have no idea if he is in a race, he could be riding for a number of reasons.
explanation_3: Not everyone on a bicycle is in a race.
premise_logic: exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & with(e1,x5) & n_graffitus(x5) & on(e1,x4) & n_pavement(x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bicycle(x3) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_man(x1) & exists x2.(in(x1,x2) & n_race(x2)))