Monday a semi and a car collided in Liberal sending a Liberal woman to the hospital.  The Kansas Highway Patrol reports 49 year old Rosa Chavez of Liberal was driving a Toyota Corolla west on Highway 54.  Her vehicle failed to stop at the red light and collided with a Volvo tractor at Pershing and Pancake Monday at about 5:13 PM.  The vehicles came to rest in the west bound lane of 54.  Chavez was injured and taken to Southwest Medical Center.  The driver of the truck was not injured.