premise: People in motion down a city sidewalk.
hypothesis: People are flying down a sidewalk.
explanation_1: People who are in motion are not necessarily flying.
explanation_2: People are not flying because people cannot fly.
explanation_3: Being in motion does not imply flying.
premise_logic: exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & down(x2,x3) & n_sidewalk(x3) & of(x3,x4) & n_city(x4) & n_motion(x2) & n_people(x1))
hypothesis_logic: exists e1 x1 x2.(down(e1,x2) & n_sidewalk(x2) & Actor(e1,x1) & v_fly(e1) & n_people(x1))