A boy wearing black swimming trunks is standing in a fountain.
A boy is standing in a fountain.
boy  is standing in a fountain implies that he is standing.
exists e1 e2 s1 x1 x2 x3 x4 x5.(in(e2,x5) & n_fountain(x5) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_trunk(x3) & of(x3,x4) & n_swimming(x4) & a_black(s1) & Theme(s1,x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2.(in(e1,x2) & n_fountain(x2) & Actor(e1,x1) & v_stand(e1) & n_boy(x1))