A small boy in goggles smiling.
A boy in goggles smiles during his snorkeling lesson.
A small boy in goggles smiling doesn't mean that the boy is smiling during his snorkeling lesson.
exists e1 s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & Actor(e1,x3) & v_smile(e1) & (x2 = x3) & n_goggles(x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 e2 x1 x2 x3.(during(e1,x3) & n_lesson(x3) & Actor(e2,x3) & v_snorkele(e2) & of(x3,x1) & n_male(x1) & Actor(e1,x1) & v_smile(e1) & in(x1,x2) & n_goggles(x2) & n_boy(x1))