premise: A Seattle firefighter standing in front of his truck.
hypothesis: The man is standing in front of the ambulance.
explanation_1: A firefigher's truck is a firetruck, not an ambulance.
explanation_2: The firefighter can be standing either in front of his truck or in front of an ambulance.
explanation_3: A truck does not mean it's an ambulance.
premise_logic: exists x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x4) & of(x4,x5) & n_truck(x5) & of(x5,x1) & n_male(x1) & n_front(x4) & n_standing(x1) & of(x1,x3) & n_firefighter(x3) & (x1 = x2) & ne_org_seattle(x2))
hypothesis_logic: exists e1 x1 x2 x3.(n_ambulance(x3) & n_man(x1) & in(e1,x2) & of(x2,x3) & n_front(x2) & Actor(e1,x1) & v_stand(e1))
premise_sim: exists x1 x2 x3 x4 x5.(of(x5,x1) & of(x4,x5) & of(x1,x3) & ne_org_seattle(x2) & n_truck(x5) & n_standing(x1) & n_male(x1) & n_front(x4) & n_firefighter(x3) & in(x1,x4) & a_topic(x1) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2 x3.(v_stand(e1) & of(x2,x3) & n_man(x1) & n_front(x2) & n_ambulance(x3) & in(e1,x2) & Actor(e1,x1))