Three children are on the floor playing with building blocks.
Three children build a replica of the White House with blocks.
The three children could have been trying to build a replica of another object other than the White House.
exists p1 x1 x2 x3.(n_playing(x2) & of(x2,x3) & n_floor(x3) & exists x4 x5.(on(x1,x2) & with(x2,x4) & n_block(x4) & of(x4,x5) & n_building(x5)) & n_child(x1) & card_eq_3(x1))
exists e1 x1 x2 x3 x4 x5.(ne_org_house(x3) & (x3 = x4) & ne_org_white(x4) & with(e1,x5) & n_block(x5) & Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & of(x2,x3) & n_replica(x2) & n_child(x1) & card_eq_3(x1))