A man is sleeping on a sofa outside.
A man carrying a sofa
A man cannot be both sleeping on and carrying a sofa simultaneously. Also, sofas are not usually found outside.
exists e1 x1 x2 x3.(on(e1,x2) & n_outside(x2) & of(x2,x3) & n_sofa(x3) & Actor(e1,x1) & v_sleep(e1) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_carry(e1) & n_sofa(x3) & (x1 = x2) & n_man(x1))