premise: A man without a shirt works on a roof.
hypothesis: A man is shirtless/
explanation_1: A shirtless person is, by definition, without a shirt.
premise_logic: exists e1 x1 x2.(on(e1,x2) & n_roof(x2) & Actor(e1,x1) & v_work(e1) & -exists x3.(with(x1,x3) & n_shirt(x3)) & n_man(x1))
hypothesis_logic: exists s1 x1.(Theme(s1,x1) & a_shirtless/(s1) & n_man(x1))
premise_sim: exists e1 x1 x2.(v_work(e1) & on(e1,x2) & n_roof(x2) & n_man(x1) & all x3.(-with(x1,x3) | -n_shirt(x3)) & Actor(e1,x1))
hypothesis_sim: exists s1 x1.(n_man(x1) & a_shirtless/(s1) & Theme(s1,x1))