A young man dressed in blue swimming trunks and a red life jacket waterskiing in a blue lake.
A man is waterskiing on a lake.
A man, the person, is dressed in blue swimming trunks and red life jacket, so must be be waterskiing on a lake.
exists e1 e2 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(s1) & subset_of(x5,s1) & in(e2,x8) & n_lake(x8) & a_blue(s5) & Theme(s5,x8) & Actor(e2,x7) & v_waterskie(e2) & (x5 = x7) & n_jacket(x5) & of(x5,x6) & n_life(x6) & a_red(s4) & Theme(s4,x5) & subset_of(x1,s1) & in(e1,x3) & n_trunk(x3) & of(x3,x4) & n_swimming(x4) & a_blue(s3) & Theme(s3,x3) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1) & a_young(s2) & Theme(s2,x1))
exists e1 x1 x2.(on(e1,x2) & n_lake(x2) & Actor(e1,x1) & v_waterskie(e1) & n_man(x1))