premise: A policeman is directing a crowd of people walking.
hypothesis: A policeman is keeping people away from a crime scene.
explanation_1: directing doesn't mean keeping people away
explanation_2: We have no idea if he is keeping people away from a crime scene, police direct traffic and people for a number of reasons.
explanation_3: Policemen direct crowds in many situations, not only to keep them away from a crime scene.
premise_logic: exists e2 e1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_direct(e2) & of(x2,x3) & Actor(e1,x4) & v_walk(e1) & (x3 = x4) & n_people(x3) & n_crowd(x2) & n_policeman(x1))
hypothesis_logic: exists e1 p1 x1 x2.(exists s1 x3 x4.(from(s1,x3) & n_scene(x3) & of(x3,x4) & n_crime(x4) & Theme(s1,x2) & a_away(s1)) & Recipient(e1,p1) & Actor(e1,x1) & Topic(e1,x2) & v_keep(e1) & n_people(x2) & n_policeman(x1))