Two bicycle taxi drivers rest on the seats of their taxis.
A taxi driver is sleeping in the front seat of his cab.
A taxi driver who is sleeping cannot simultaneoulsy be two bicycle taxi drivers who rest.
exists x1 x2 x3 x4 x5.(n_thing(x5) & n_seat(x5) & a_topic(x1) & on(x1,x5) & of(x5,x3) & n_taxi(x3) & n_taxi(x3) & of(x3,x5) & n_rest(x1) & of(x1,x4) & n_driver(x4) & of(x1,x3) & of(x1,x2) & n_bicycle(x2) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4.(n_cab(x4) & of(x4,x3) & n_male(x3) & n_seat(x3) & a_front(s1) & Theme(s1,x3) & in(e1,x3) & of(x3,x4) & Actor(e1,x1) & v_sleep(e1) & n_driver(x1) & of(x1,x2) & n_taxi(x2))