The building is undergoing a construction project.
The building is being repaired.
The building may actually be a new construction project and is not actually being repaired.
exists e1 x1 x2 x3.(n_building(x1) & Theme(e1,x2) & Actor(e1,x1) & v_undergo(e1) & n_project(x2) & of(x2,x3) & n_construction(x3))
exists e1 x1.(n_building(x1) & Theme(e1,x1) & v_repair(e1))