Task: Question Answering
Input (English): Passage: This Week 11 matchup against the Texans was expected to be a boring affair, but it was anything but. The first quarter saw a dominating offensive performance by Lee Evans, who caught six passes for 205 yards and a pair of 83-yard touchdowns, falling just five yards short of the NFL mark for most yards receiving in a quarter of 210 set by Qadry Ismail in 1999. However, Houston was not intimidated and kept the game close going into halftime. In the second half, the Bills' offense slowed down greatly, but Houston kept flying, mostly on the arm of David Carr, who tied the NFL record for most consecutive completions in a game with 22. Dunta Robinson intercepted a Losman pass and ran it in for an easy score, giving the Texans a 21-17 edge that held until the final seconds, when Losman led the Bills down the field and hit Peerless Price for the game-winning 9-yard catch in the back of the end zone with 0:09 remaining (the play was reviewed and upheld) for the 24-21 victory in a game where Losman set a career-high for passing yardage with 340 and Evans set a new franchise record with 265 yards receiving. With the win, the Bills improved to 4-6. 
Question: How many points did Buffalo win by? 
Answer type: Number 
Output (English): 3.