Kids scale a wall as two other people watch.
Children are doing homework.
the children cannot scale a wall and do homework at the same time
exists e1 x1 x2 x3 x4 x5 x6.(n_people(x5) & a_topic(x1) & Theme(e1,x6) & Actor(e1,x3) & v_watch(e1) & (x1 = x6) & as(x3,x4) & -(x4 = x5) & n_people(x4) & card_eq_2(x4) & n_wall(x3) & n_scale(x1) & (x1 = x2) & ne_nam_kids(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_homework(x2) & n_child(x1))