Two children in front of a red building.
the building is a firehouse
Just because the individuals are in front of a red building that does not mean the building is a firehouse.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & of(x2,x3) & n_building(x3) & a_red(s1) & Theme(s1,x3) & n_front(x2) & n_child(x1) & card_eq_2(x1))
exists p1 x1.(n_building(x1) & exists x2.((x1 = x2) & n_firehouse(x2)))