Task: Question Answering
Input (English): Passage: Coming off their win over the Seahawks, the Panthers stayed at home for a Week 16 Saturday night duel with the playoff-bound Dallas Cowboys in an attempt to keep their slim playoff hopes alive. In the first quarter, Carolina trailed early as Cowboys QB Tony Romo completed a 10-yard TD pass to WR Terrell Owens for the only score of the period. In the second quarter, Dallas increased its lead with RB Marion Barber getting a 5-yard TD run. The Panthers got on the board with Matt Moore completing an 11-yard TD pass to WR Steve Smith. The Cowboys ended the half with kicker Nick Folk getting a 42-yard field goal. In the third quarter, Carolina began rallying with John Kasay getting a 37-yard field goal for the only score of the period. In the fourth quarter, Dallas responded with Folk kicking a 23-yard field goal. The Panthers tried to come back as Kasay nailed a 25-yard field goal, but the Cowboys' defense held on for the win. With the loss, not only did Carolina fall to 6-9, but it also eliminated them from the playoff race. 
Question: How many yards difference is there between the longest and shortest field goals? 
Answer type: Number 
Output (English): 19.