Task: Question Answering
Input (English): Passage: The Seahawks ventured to Arrowhead Stadium without stars Matt Hasselbeck and Shaun Alexander. Seneca Wallace made his first career start in a stadium where the Seahawks have won only twice in their last 20 visits. The story of the game was not the Seahawks wounded offence, but rather the failure of the supposedly healthy defence. The Chiefs controlled the ball for over 42 minutes of the contest, piled up 499 total net yards, and were able to sustain drives all afternoon. The Seahawks defence was only able to force one Chiefs punt, early in the fourth quarter. Despite being dominated in time of possession and yardage, the Seahawks found themselves leading the game 28-27 after a Kelly Herndon 61-yard TD return of a fumbled field goal attempt and a 49-yard TD grab by Darrell Jackson with just over 6 minutes remaining. The Chiefs responded as they had all game, with an 8-play, 80-yard drive capped off by Larry Johnson's 4th TD of the game. A successful 2-point conversion made the score 35-28. A last drive by the Seahawks ended when Seneca Wallace completed a short sideline pass to FB Mack Strong for 8 yards on 4th down and 15 from the Chiefs 46-yard line. Fox became the sixth network to air a game between these two teams. All Sunday afternoon meetings between 1977-97 were aired on NBC, then from 1998-2001 on CBS (which also aired the 2002 game in Seattle). ESPN broadcast Sunday night games in 1992 and 1998, TNT aired a Thursday night game in 1996, and ABC aired a Monday night game in 2000. 
Question: How many points did the Chiefs lead with at the end of the game? 
Answer type: Number 
Output (English): 7.