four children lay on a tube.
When the tube is planted, it will sprout into tulips.
children are laying on the tube. The tube is not being planted
exists e1 x1 x2.(on(e1,x2) & n_tube(x2) & Actor(e1,x1) & v_lay(e1) & n_child(x1) & card_eq_4(x1))
exists p1 p2 p3 x1.(n_thing(x1) & n_tube(x1) & exists e2 x2.(into(e2,x2) & n_tulip(x2) & Actor(e2,x1) & v_sprout(e2)) & exists e1.(Theme(e1,x1) & v_plant(e1)) & when(p2,p3))