Task: Question Answering
Input (English): Passage: Coming off their win over the Eagles the Redskins played on home ground for an NFC duel with the Packers. In the first quarter the Redskins trailed early as QB Aaron Rodgers completed a 5-yard TD pass to TE Donald Lee. This was followed in the 2nd quarter by kicker Mason Crosby hitting a 52-yard field goal. The Redskins replied with kicker Graham Gano getting a 26-yard field goal. Then in the third quarter Crosby made a 36-yard field goal to put the Packers up 13-3. The Redskins rallied with QB Donovan McNabb completing a 48-yard TD pass to WR Anthony Armstrong, followed by Gano making a 45 yard-field goal. At overtime, the decision was made when Gano successfully put away a 33-yard field goal to win the game for the Redskins. 
Question: How many yards was the longest touchdown pass? 
Answer type: Number 
Output (English): 48.