A man wearing white shorts and no shirt is performing tricks on his bike in a skate park.
A man doing a front flip on his bike in a skate park.
The man is performing tricks but that doesn't necessarily imply that he is doing a front flip.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(in(e2,x7) & n_park(x7) & of(x7,x8) & n_skate(x8) & on(e2,x6) & n_bike(x6) & of(x6,x2) & n_male(x2) & Theme(e2,x5) & Actor(e2,x1) & v_perform(e2) & n_trick(x5) & -exists x9.(subset_of(x9,x1) & n_shirt(x9)) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_shorts(x4) & a_white(s1) & Theme(s1,x4) & (x2 = x3) & n_man(x2))
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(e1,x5) & n_park(x5) & of(x5,x6) & n_skate(x6) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & on(x3,x4) & n_bike(x4) & of(x4,x1) & n_male(x1) & n_flip(x3) & a_front(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))