premise: Two groups of swimmers wade out.
hypothesis: two groups of swimmers are competing
explanation_1: Just because the swimmers are in separate groups, that does not mean they are competing.
premise_logic: exists e1 s1 x1 x2.(a_out(s1) & Manner(e1,s1) & Actor(e1,x1) & v_wade(e1) & of(x1,x2) & n_swimmer(x2) & n_group(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1 x2.(Actor(e1,x1) & v_compete(e1) & of(x1,x2) & n_swimmer(x2) & n_group(x1) & card_eq_2(x1))
premise_sim: exists e1 s1 x1 x2.(v_wade(e1) & of(x1,x2) & n_swimmer(x2) & n_group(x1) & card_eq_2(x1) & a_out(s1) & Manner(e1,s1) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_compete(e1) & of(x1,x2) & n_swimmer(x2) & n_group(x1) & card_eq_2(x1) & Actor(e1,x1))