Task: Question Answering
Input (English): Passage: The Eagles' eighth game was an Interconference duel with the Colts at home. In the first quarter the Eagles Took the lead as QB Michael Vick completed a 9-yard TD pass to WR DeSean Jackson. This was followed by kicker David Akers' 22- and 21-yard field goals. The Colts replied with QB Peyton Manning completing a 3-yard TD pass to TE Jacob Tamme. The Eagles extended their lead after Akers nailed a 31-yard field goal. They eventually trailed by 1 point after RB Javarris James got a 6-yard TD run, followed by kicker Adam Vinatieri making a 37-yard field goal. The Eagles got the lead back in the 3rd quarter after Akers got a 44-yard field goal, followed by Vick scrambling a yard to the endzone for a touchdown. The Colts narrowed the lead when James got a 1-yard TD run, but in the final minute Manning lofted a deep pass that was intercepted by Asante Samuel. With the close win, the Eagles improved to 5-3.  It was also the first win over the Colts for the Eagles since the 1993 season. 
Question: How many more field goals were kicked in the first half than the second half? 
Answer type: Number 
Output (English): 2.