The boys are having a night out from homework; some are at the table while two are sleeping.
Four boys are doing homework.
The boys cannot be having a night out from homework and doing homework at the same time
exists e1 p1 p2 x1 x2 x3 x4 x5.(n_table(x5) & n_boy(x1) & exists e2 x6.(Actor(e2,x6) & v_sleep(e2) & n_thing(x6) & card_eq_2(x6)) & while(p1,p2) & at(x4,x5) & n_thing(x4) & from(e1,x3) & n_homework(x3) & r_out(e1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_night(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_homework(x2) & n_boy(x1) & card_eq_4(x1))