premise: A large competition sailboat is surrounded by three small boats in the middle of the water.
hypothesis: There are four boats in the middle of the water.
explanation_1: Large sailboat surrounded by three small boats are four boats.
explanation_2: The four boats in the middle of the water are small, and is surrounding the large competition sailboat.
explanation_3: Adding the large boat and three small boats in the middle, makes 4 boats in the middle/
premise_logic: exists p1 s1 x1 x4 x5.(n_water(x5) & n_middle(x4) & a_topic(x1) & exists e1 s2 x2 x3.(in(e1,x4) & of(x4,x5) & Actor(e1,x3) & n_boat(x3) & a_small(s2) & Theme(s2,x3) & card_eq_3(x3) & Theme(e1,x2) & v_surround(e1) & n_sailboat(x2)) & that(x1,p1) & n_competition(x1) & a_large(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1 x2 x3.(n_water(x3) & n_middle(x2) & in(p1,x2) & of(x2,x3) & exists x4.((x1 = x4) & n_boat(x4) & card_eq_4(x4)))
premise_sim: exists p1 s1 x1 x4 x5.(that(x1,p1) & n_water(x5) & n_middle(x4) & n_competition(x1) & exists e1 s2 x2 x3.(v_surround(e1) & of(x4,x5) & n_sailboat(x2) & n_boat(x3) & in(e1,x4) & card_eq_3(x3) & a_small(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x3)) & a_topic(x1) & a_large(s1) & Theme(s1,x1))
hypothesis_sim: exists p1 x1 x2 x3.(of(x2,x3) & n_water(x3) & n_middle(x2) & in(p1,x2) & exists x4.(n_boat(x4) & card_eq_4(x4) & (x1 = x4)))