Task: Question Understanding
Input (English): Passage: Hoping to rebound from their loss to the Giants the Texans played on home ground for an AFC duel against the Chiefs. In the first quarter the Chiefs took the early lead with QB Matt Cassel getting a 2-yard TD pass to OLB Mike Vrabel. The Texans responded and tied the game with QB Matt Schaub making a 5-yard TD pass to TE Joel Dreessen. The Chiefs rallied with Cassel making a 17 and then a 42-yard TD pass to WR Dwayne Bowe in the 3rd quarter. The Texans replied with RB Derrick Ward getting a 38-yard TD run. Then kicker Ryan Succop made a 24-yard field goal to put the Chiefs up 24-14. In the fourth quarter the Texans closed the gap with RB Arian Foster making a 2-yard TD run, but the Chiefs tried to pull away with RB Thomas Jones getting an 11-yard TD run. However, the Texans replied and eventually snatched the win with Foster making a 1-yard TD run, and then with Schaub finding WR Andre Johnson on an 11-yard TD pass. With the win, Houston went into their bye week at 4-2.
Question: Which quarterback threw the first touchdown pass?
Output (English): span