premise: a guy with long hair is making a sand sculpture
hypothesis: A guy is in a sand castle building competition.
explanation_1: Not all guys with long hair are making a sand castle for a competition.
explanation_2: Just because a guy is making  a sand sculpture it does not mean he is in a sand castle building competition.
explanation_3: Not all sand sculptures are castles. Not all people who build sand sculptures do so in a competition.
premise_logic: exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_make(e1) & n_sculpture(x3) & of(x3,x4) & n_sand(x4) & with(x1,x2) & n_hair(x2) & a_long(s1) & Theme(s1,x2) & n_guy(x1))
hypothesis_logic: exists p1 x1.(exists e1 x2 x3 x4.(in(x1,x2) & n_competition(x2) & Actor(e1,x2) & v_build(e1) & of(x2,x4) & n_castle(x4) & of(x2,x3) & n_sand(x3)) & n_guy(x1))
premise_sim: exists e1 s1 x1 x2 x3 x4.(with(x1,x2) & v_make(e1) & of(x3,x4) & n_sculpture(x3) & n_sand(x4) & n_hair(x2) & n_guy(x1) & a_long(s1) & Theme(s1,x2) & Theme(e1,x3) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_guy(x1) & exists e1 x2 x3 x4.(v_build(e1) & of(x2,x4) & of(x2,x3) & n_sand(x3) & n_competition(x2) & n_castle(x4) & in(x1,x2) & Actor(e1,x2)))