premise: Two guys sit on opposite sides of a strange billboard.
hypothesis: The two guys are workers working on the billboard taking a break.
explanation_1: Guys who sit on a billboard are not necessarily workers.
explanation_2: There are other reasons to be on a billboard and they may not be working on the billboard. They could be working, not on a break, but be on a billboard to get a vantage point of a scene.
explanation_3: Sitting next to a billboard doesn't mean the two guys are workers working on it.
premise_logic: exists e1 s1 s2 x1 x2 x3.(on(e1,x2) & of(x2,x3) & n_billboard(x3) & a_strange(s2) & Theme(s2,x3) & n_side(x2) & a_opposite(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_guy(x1) & card_eq_2(x1))
hypothesis_logic: exists e2 e1 p1 x1 x2 x3 x4.(n_billboard(x2) & n_guy(x1) & card_eq_2(x1) & for(p1,e1) & on(e1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_take(e2) & n_break(x4) & (x2 = x3) & Actor(e1,x1) & v_work(e1) & exists x5.((x1 = x5) & n_worker(x5)))
premise_sim: exists e1 s1 s2 x1 x2 x3.(v_sit(e1) & on(e1,x2) & of(x2,x3) & n_side(x2) & n_guy(x1) & n_billboard(x3) & card_eq_2(x1) & a_strange(s2) & a_opposite(s1) & Theme(s2,x3) & Theme(s1,x2) & Actor(e1,x1))
hypothesis_sim: exists e2 e1 p1 x1 x2 x3 x4.(v_work(e1) & v_take(e2) & on(e1,x2) & n_guy(x1) & n_break(x4) & n_billboard(x2) & for(p1,e1) & exists x5.(n_worker(x5) & (x1 = x5)) & card_eq_2(x1) & Theme(e2,x4) & Actor(e2,x3) & Actor(e1,x1) & (x2 = x3))