A boy is performing a trick on his skateboard beneath white clouds and a blue sky as four sitting guys watch him.
Someone is watching a boy do tricks
Just because a boy is doing a trick on his skateboard does not imply he is doing multiple tricks.
exists e2 e1 e3 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e3,x3) & Actor(e3,x1) & v_watch(e3) & n_male(x3) & beneath(e1,x5) & subset_of(x7,x5) & as(x7,x8) & n_guy(x8) & Actor(e2,x8) & v_sit(e2) & card_eq_4(x8) & n_sky(x7) & a_blue(s2) & Theme(s2,x7) & subset_of(x6,x5) & n_cloud(x6) & a_white(s1) & Theme(s1,x6) & on(e1,x4) & n_skateboard(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_trick(x3) & (x1 = x2) & n_boy(x1))
exists e2 e1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_watch(e2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_trick(x4) & (x2 = x3) & n_boy(x2) & n_person(x1))