premise: three teenagers wearing t-shirt run down the beach, with several other people in the background.
hypothesis: two men sit in the water on boards
explanation_1: There can be either three or two people. They can be either men or teenagers. One cannot run and sit simultaneously
explanation_2: There can be either three teenagers or two men while it is impossible to both run down the beach and sit in the water on boards.
explanation_3: Three teenagers aren't two men.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_background(x7) & n_people(x6) & n_beach(x4) & a_topic(x1) & with(e1,x5) & in(x5,x7) & -(x5 = x6) & n_people(x5) & a_several(s2) & Theme(s2,x5) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & down(x3,x4) & n_run(x3) & a_t-shirt(s1) & Theme(s1,x3) & (x1 = x2) & n_teenager(x1) & card_eq_3(x1))
hypothesis_logic: exists e1 x1 x2 x3.(n_water(x2) & in(e1,x2) & on(x2,x3) & n_board(x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & card_eq_2(x1))