Task: Question Answering
Input (English): Passage: The Dolphins' eighth game was an AFC duel with the Ravens. The Dolphins trailed early after QB Joe Flacco completed a 32-yard TD pass to RB Willis McGahee. They replied with RB Ronnie Brown getting a 12-yard TD run. The Ravens got the lead back after kicker Billy Cundiff made a 26 and a 39-yard field goal. The Dolphins narrowed the lead with kicker Dan Carpenter nailing a 19-yard field goal. The Dolphins fell further behind after Flacco found WR Derrick Mason on a 12-yard TD pass. This was followed in the 4th quarter by Cundiff hitting a 20 and a 24-yard field goal. 
Question: How many yards longer was Willis McGahee's touchdown compared to Derrick Mason's? 
Answer type: Number 
Output (English): 20.