title: Mexico–United States border
context: The U.S. states along the border, from west to east, are California, Arizona, New Mexico, and Texas. The Mexican states along the border are Baja California, Sonora, Chihuahua, Coahuila, Nuevo León, and Tamaulipas.
question: Which U.S. states border Mexico?
answers.text: California, Arizona, New Mexico, and Texas