A man in a respiration mask working.
girl with toys
A man is not a girl. A respiration mask is not a toy.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Actor(e1,x4) & v_work(e1) & (x1 = x4) & in(x1,x2) & n_mask(x2) & of(x2,x3) & n_respiration(x3) & n_man(x1))
exists x1 x2.(a_topic(x1) & with(x1,x2) & n_toy(x2) & n_girl(x1))