U.S. workers are unavailable, must notadversely affect the wages and working conditions of U.S. workers.
U.S. workers cannot affect the wages and working conditions of U.S. workers.
mnli hypothesis: U.S. workers cannot affect the wages and working conditions of U.S. workers. premise: U.S. workers are unavailable, must notadversely affect the wages and working conditions of U.S. workers.