A man smiles while he washes windows.
An elephant in the circus.
man and elephant are from different species.
exists e1 p1 x1.(exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_wash(e2) & n_window(x2)) & n_male(x1) & while(e1,p1) & Actor(e1,x1) & v_smile(e1) & n_man(x1))
exists x1 x2.(n_circus(x2) & a_topic(x1) & in(x1,x2) & n_elephant(x1))