A little boy in a red outfit is on a man's shoulders.
A man and his small son are watching a parade.
Just because the boy is on a man's shoulders doesn't necessarily mean he is watching a parade.
exists p1 s1 s2 x1 x2.(exists x3 x4.(on(x1,x4) & n_shoulder(x4) & of(x4,x3) & n_man(x3)) & in(x1,x2) & n_outfit(x2) & a_red(s2) & Theme(s2,x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_watch(e1) & n_parade(x4) & subset_of(x3,x1) & n_son(x3) & a_small(s1) & Theme(s1,x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))