A flight attendant is waiting on a bench.
Aircraft employee sits on bench.
Flight attendant is an aircraft employee.
exists e1 x1 x2 x3.(on(e1,x3) & n_bench(x3) & Actor(e1,x1) & v_wait(e1) & n_attendant(x1) & of(x1,x2) & n_flight(x2))
exists e1 x1 x2 x3.(on(e1,x3) & n_bench(x3) & Actor(e1,x1) & v_sit(e1) & n_employee(x1) & (x1 = x2) & ne_org_aircraft(x2))