A young man in an Elmo t-shirt is flying through the air on a mountain bike in the woods.
A young man wearing a cartoon t-shirt is doing tricks on his bike in the woods.
Elmo may or may not be depicted as a cartoon.  A bike flying through the air is not necessarily doing tricks.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(n_wood(x7) & n_air(x4) & on(e1,x5) & in(x5,x7) & n_bike(x5) & of(x5,x6) & n_mountain(x6) & through(e1,x4) & Actor(e1,x1) & v_fly(e1) & in(x1,x2) & n_t-shirt(x2) & (x2 = x3) & ne_geo_elmo(x3) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(n_wood(x7) & in(e2,x7) & on(e2,x6) & n_bike(x6) & of(x6,x1) & n_male(x1) & Theme(e2,x5) & Actor(e2,x1) & v_do(e2) & n_trick(x5) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_t-shirt(x3) & of(x3,x4) & n_cartoon(x4) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))