A man and woman in matching shirts clean the floor.
A couple are washing the floor.
A man and woman is a couple and clean is washing.
exists e2 e1 x1 x2 x3 x4 x5.(n_floor(x5) & Theme(e2,x5) & Actor(e2,x1) & v_clean(e2) & in(x1,x4) & n_shirt(x4) & Actor(e1,x4) & v_match(e1) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1 x2.(n_floor(x2) & Theme(e1,x2) & Actor(e1,x1) & v_wash(e1) & n_couple(x1))