A woman doing yoga on the beach on the ocean.
The man does pilates on the sidewalk.
A person can be a man or a woman but not both.
exists e1 x1 x2 x3 x4 x5.(n_ocean(x5) & n_beach(x4) & a_topic(x1) & on(e1,x5) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_yoga(x3) & (x1 = x2) & n_woman(x1))
exists e1 x1 x2 x3.(n_sidewalk(x3) & n_man(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_pilate(x2))