An employee is vacuuming a building model.
The building model is very large.
Just because an employee is vacuuming a model doesn't mean it's very large.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_vacuum(e1) & n_model(x2) & of(x2,x3) & n_building(x3) & n_employee(x1))
exists s1 x1 x2.(n_model(x1) & of(x1,x2) & n_building(x2) & r_very(s1) & Theme(s1,x1) & a_large(s1))