premise: a man sitting on a motorcycle with a sunset directly behind him
hypothesis: A man sitting on his motorcycle as night begins to fall.
explanation_1: A sunset by definition happens when night begins to fall.
explanation_2: "A man sitting on his motorcycle as night begins to fall" is a rephrasing of "A man sitting on a motorcycle with a sunset directly behind him."
explanation_3: sunset is a sign when night begins to fall.
premise_logic: exists e1 x1 x2 x3 x4.(a_topic(x1) & r_directly(e1) & behind(e1,x1) & n_male(x1) & with(e1,x4) & n_sunset(x4) & on(e1,x3) & n_motorcycle(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists e1 p1 x1 x2 x3.(a_topic(x1) & exists e2 p2 x4.(Topic(e2,p2) & Actor(e2,x4) & v_begin(e2) & exists e3.(Actor(e3,x4) & v_fall(e3)) & n_night(x4)) & as(e1,p1) & on(e1,x3) & n_motorcycle(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
premise_sim: exists e1 x1 x2 x3 x4.(with(e1,x4) & v_sit(e1) & r_directly(e1) & on(e1,x3) & n_sunset(x4) & n_motorcycle(x3) & n_man(x1) & n_male(x1) & behind(e1,x1) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 p1 x1 x2 x3.(v_sit(e1) & on(e1,x3) & of(x3,x1) & n_motorcycle(x3) & n_man(x1) & n_male(x1) & exists e2 p2 x4.(v_begin(e2) & n_night(x4) & exists e3.(v_fall(e3) & Actor(e3,x4)) & Topic(e2,p2) & Actor(e2,x4)) & as(e1,p1) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))