One child is reading to another.
Two children playing baseball.
One child is fewer than two children, and reading is not the same as playing.
exists e1 x1 x2.(to(e1,x2) & n_thing(x2) & Actor(e1,x1) & v_read(e1) & n_child(x1) & card_eq_1(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_baseball(x3) & (x1 = x2) & n_child(x1) & card_eq_2(x1))