premise: Two men, and one girl are wearing life jackets and swimming in the water.
hypothesis: Three people participate in a water rescue class.
explanation_1: Just because the three people are swimming, that does not mean they are in a water rescue class.
explanation_2: We have no idea if they are in a water rescue class, they could be in water for a number or reasons.
explanation_3: Not everyone that swims is in a water rescue class.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6 x7 x8.(n_water(x8) & in(e1,x8) & Theme(e1,x4) & Actor(e1,x1) & v_wear(e1) & n_swimming(x7) & n_jacket(x6) & subset_of(x7,x4) & subset_of(x6,x4) & of(x4,x5) & n_life(x5) & subset_of(x3,x1) & n_girl(x3) & card_eq_1(x3) & subset_of(x2,x1) & n_man(x2) & card_eq_2(x2))
hypothesis_logic: exists e1 x1 x2 x3 x4.(in(e1,x2) & n_class(x2) & of(x2,x4) & n_rescue(x4) & of(x2,x3) & n_water(x3) & Actor(e1,x1) & v_participate(e1) & n_people(x1) & card_eq_3(x1))