two nuns looking at a cellphone.
The nuns are sleeping.
two nuns looking cannot be nun sleeping at the same time
exists e1 x1 x2.(at(e1,x2) & n_cellphone(x2) & Actor(e1,x1) & v_look(e1) & n_nun(x1) & card_eq_2(x1))
exists e1 x1.(n_nun(x1) & Actor(e1,x1) & v_sleep(e1))