premise: A man is standing on a rooftop looking at his camera.
hypothesis: A man is on the roof with a camera.
explanation_1: A man is standing on a rooftop is as same as A man is on the roof.
explanation_2: Standing on a rooftop implies that the man is on the roof.
explanation_3: standing on and is on are two ways to say the same thing. looking at his camera implies he is with a camera
premise_logic: exists e1 e2 x1 x2 x3.(for(e1,e2) & at(e2,x3) & n_camera(x3) & of(x3,x1) & n_male(x1) & Actor(e2,x1) & v_look(e2) & on(e1,x2) & n_rooftop(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
hypothesis_logic: exists p1 x1 x2.(n_roof(x2) & exists x3.(on(x1,x2) & with(x2,x3) & n_camera(x3)) & n_man(x1))
premise_sim: exists e1 e2 x1 x2 x3.(v_stand(e1) & v_look(e2) & on(e1,x2) & of(x3,x1) & n_rooftop(x2) & n_man(x1) & n_male(x1) & n_camera(x3) & for(e1,e2) & at(e2,x3) & Actor(e2,x1) & Actor(e1,x1))
hypothesis_sim: exists x1 x2.(n_roof(x2) & n_man(x1) & exists x3.(with(x2,x3) & on(x1,x2) & n_camera(x3)))