A man in a black shirt is looking at a woman in a white shirt with a silly face.
A man is swimming in a swimming pool.
Looking implies observing while swimming is an action; the two cannot be done together.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(at(e1,x3) & with(x3,x5) & n_face(x5) & a_silly(s3) & Theme(s3,x5) & in(x3,x4) & n_shirt(x4) & a_white(s2) & Theme(s2,x4) & n_woman(x3) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(in(e1,x2) & n_pool(x2) & of(x2,x3) & n_swimming(x3) & Actor(e1,x1) & v_swim(e1) & n_man(x1))