Two children are building something on the floor.
Three people order from a menu.
The group can't consist of two and three at the same time. The group can't be building something and ordering from a menu at the same time.
exists e1 x1 x2 x3.(n_floor(x3) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & n_thing(x2) & n_child(x1) & card_eq_2(x1))
(x)