Four office workers are working on a project.
A boss fires an employee.
if someone is fires they cannot be working on a project.
exists e1 x1 x2 x3.(on(e1,x3) & n_project(x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_office(x2) & card_eq_4(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_fire(e1) & n_employee(x2) & n_boss(x1))