premise: A shirtless man with a backpack.
hypothesis: the man is a model
explanation_1: A shirtless man is not necessarily a model.
premise_logic: exists s1 x1 x2.(a_topic(x1) & with(x1,x2) & n_backpack(x2) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_model(x2)))
premise_sim: exists s1 x1 x2.(with(x1,x2) & n_man(x1) & n_backpack(x2) & a_topic(x1) & a_shirtless(s1) & Theme(s1,x1))
hypothesis_sim: exists x1.(n_man(x1) & exists x2.(n_model(x2) & (x1 = x2)))