premise: A man on a bike under a large red umbrella gestures at a group of people.
hypothesis: A guy is riding a bike.
explanation_1: A man could be riding a bike if he is on a bike.
explanation_2: A guy is a man. A man could only ride a bike if he is on it.
explanation_3: A man is synonym of guy, and one must be on a bike to be riding it.
premise_logic: exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & on(x1,x2) & under(x2,x3) & at(x3,x5) & of(x5,x6) & n_people(x6) & n_group(x5) & n_gesture(x3) & of(x3,x4) & n_umbrella(x4) & a_red(s2) & Theme(s2,x3) & a_large(s1) & Theme(s1,x3) & n_bike(x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_guy(x1))