premise: A group of teenagers enjoying cooling off in a fountain of water.
hypothesis: The teenagers are skateboard surfing with a van.
explanation_1: They can be either cooling off in a fountain or skateboard surfing
explanation_2: Skateboard surging is down in the street and not in water.
explanation_3: People cannot go skateboard surfing in a fountain of water.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x4) & of(x4,x5) & n_water(x5) & n_fountain(x4) & a_off(s1) & Manner(e1,s1) & Actor(e1,x3) & v_cool(e1) & (x1 = x3) & of(x1,x2) & n_teenager(x2) & n_group(x1))
hypothesis_logic: exists p1 x1.(n_teenager(x1) & exists s1 x2 x3.((x1 = x2) & with(x2,x3) & n_van(x3) & n_surfing(x2) & a_skateboard(s1) & Theme(s1,x2)))