Task: Question Answering
Input (English): Passage: Chad Pennington returned under center for the Jets, as they attempted to get their first win of the season against another winless team, the Miami Dolphins. The Jets' offense got going toward the end of the first quarter with a three-yard touchdown pass from Pennington to Laveranues Coles. The Dolphins responded swiftly as Trent Green and Ronnie Brown led the team on a three-minute drive that culminated on a one-yard run by Brown to tie the score at seven. However, the Jets wasted little time reclaiming the lead. Leon Washington received the ensuing kickoff at the two-yard line and returned it 98&#160;yards for a touchdown and a 14-7 lead. The Dolphins crept back with field goals of 31 and 39&#160;yards by Jay Feely on their next two possessions. Pennington kept the Dolphins at bay with a successful two-minute drill, finding tight end Chris Baker on a four-yard touchdown to close the first half and give the Jets a 21-13 halftime lead. The Jets attempted to further their lead opening the third quarter, but were stopped short of the goal line and had to settle for a 21-yard Mike Nugent field goal. The Dolphins tried to respond, but the Jets' defense forced their first takeaway of the season on the ensuing drive, an interception by Kerry Rhodes. Pennington led his offense downfield with the help of several Thomas Jones running plays before he ran into the end zone to give the Jets a 31-13 lead early in the fourth quarter. Miami would not go down quietly, however. Green quickly marched the Dolphins downfield to set up Brown's two-yard touchdown run. The Dolphins elected to attempt a two-point conversion to cut their deficit to ten; using a Statue of Liberty play, Brown walked into the end zone to complete the conversion. Although the Jets shed several minutes off the clock on their following possession, the Dolphins got the ball back and again were able to move swiftly downfield, where Brown scored his third touchdown on a 22-yard pass from Green. The Dolphins needed to recover an onside kick on the ensuing kickoff to have a chance to tie or win the game, but, despite a penalty moving the ball up ten yards, were unsuccessful, and Pennington knelt out the clock to give the Jets their first victory of the season. 
Question: How many points were the Jets leading by at the half? 
Answer type: Number 
Output (English): 8.