Detailed Instructions: This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
Q: Passage: Trying to continue their two-game winning streak and keep their playoff hopes alive, the Eagles hosted the Cleveland Browns on Monday Night Football.  The Eagles scored a touchdown on their opening drive - a 14-yard pass from Donovan McNabb to Kevin Curtis.  After trading field goals later in the first quarter, the Eagles took a 17-3 lead when Asante Samuel returned an interception 50 yards for a touchdown.  On the final play of the half, McNabb was intercepted on a fade pass by Brandon McDonald, who returned the ball all the way to inside the Eagle 5-yard line before being forced out of bounds.  David Akers converted a 34-yard field goal in the third quarter to make it 20-3 Eagles.  Following another Akers field goal, McNabb found Greg Lewis on a 10-yard touchdown pass, increasing the lead to 30-10.  Cleveland's sole touchdown came on an interception return by Brandon McDonald off of Eagle second-string quarterback Kevin Kolb.  With the win, the Eagle's winning streak increased to three games, and hopes of a playoff berth continued. Their record went to 8-5-1. 
Question: How many points were the Eagles leading by at the half? 
Answer type: Number 
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
14.