premise: Two men holding skateboards and one man skateboarding.
hypothesis: There are three skateboarders.
explanation_1: All we know is that there are 2 men holding skateboards and one skateboarding, there could be others with no board. We now know there are only three.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_skateboarding(x5) & of(x5,x6) & n_man(x6) & card_eq_1(x5) & n_skateboard(x4) & subset_of(x5,x3) & subset_of(x4,x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2.((x1 = x2) & n_skateboarder(x2) & card_eq_3(x2))
premise_sim: exists e1 x1 x2 x3 x4 x5 x6.(v_hold(e1) & subset_of(x5,x3) & subset_of(x4,x3) & of(x5,x6) & n_skateboarding(x5) & n_skateboard(x4) & n_man(x6) & n_man(x1) & card_eq_2(x1) & card_eq_1(x5) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1 x2.(n_skateboarder(x2) & card_eq_3(x2) & (x1 = x2))