Task: Question Understanding
Input (English): Passage: Hoping to rebound from their loss to the Colts, the Texans went home for an AFC South rivalry match against the Tennessee Titans. In the first quarter Houston got on the board first as QB Matt Schaub got a 3-yard touchdown pass to RB Steve Slaton. In the second quarter the Titans replied with QB Vince Young completing a 13-yard touchdown pass to WR Kenny Britt. Then Houston tried to pull away as Schaub hooked up with WR Andre Johnson on a 13-yard touchdown pass, until the Titans replied again with RB LenDale White making a 1-yard touchdown run. The Texans fell behind in the third quarter as kicker Rob Bironas made a 50-yard field goal, but came back to tie the game when kicker Kris Brown made a 26-yard field goal. In the fourth quarter the Titans scored for the win when Bironas got a 53-yard field goal.
Question: How many td passes were made in the game?
Output (English): number