A man and young boy in a yellow life jacket are swimming.
The young boy knows how to swim but wants to be safe.
Just because the boy is in a life jacket, does not mean that he knows how to swim, or that he wants to be safe.
exists p1 s1 s2 x1 x2 x3 x4 x5.(exists x6.((x1 = x6) & n_swimming(x6)) & subset_of(x3,x1) & in(x3,x4) & n_jacket(x4) & of(x4,x5) & n_life(x5) & a_yellow(s2) & Theme(s2,x4) & n_boy(x3) & a_young(s1) & Theme(s1,x3) & subset_of(x2,x1) & n_man(x2))
exists e2 e1 p1 s1 s2 x1 x2.(n_boy(x1) & a_young(s2) & Theme(s2,x1) & a_young(s1) & Theme(s1,x1) & Topic(e2,p1) & Actor(e2,x1) & v_want(e2) & exists s3.(Theme(s3,x1) & a_safe(s3)) & Topic(e1,x2) & Actor(e1,x1) & v_know(e1) & n_manner(x2) & exists e3 x3.(Actor(e3,x3) & v_swim(e3)))