A young boy with black shorts is surfing in the ocean.
A boy is surfing in the ocean.
Sentence 2 is a simplified version of sentence 1 - a boy is surfing in the ocean
exists e1 s1 s2 x1 x2 x3.(n_ocean(x3) & in(e1,x3) & Actor(e1,x1) & v_surf(e1) & with(x1,x2) & n_shorts(x2) & a_black(s2) & Theme(s2,x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_ocean(x2) & in(e1,x2) & Actor(e1,x1) & v_surf(e1) & n_boy(x1))