Two dogs drink water in a lake.
The two dogs are sleeping at the foot of their master's bed.
Dogs cannot drink water and be sleeping at the same time.
exists e1 x1 x2 x3.(in(e1,x3) & n_lake(x3) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_water(x2) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_bed(x4) & of(x4,x3) & n_master(x3) & of(x3,x2) & n_thing(x2) & n_foot(x2) & n_dog(x1) & card_eq_2(x1) & at(e1,x2) & of(x2,x4) & Actor(e1,x1) & v_sleep(e1))