Trying to snap a three-game losing streak, the Raiders stayed at home for a Week 11 duel with the Cincinnati Bengals.  Due to quarterback JaMarcus Russell's ineffectiveness, quarterback Bruce Gradkowski would get the start. Oakland would trail in the first quarter as Bengals quarterback Carson Palmer got a 1-yard touchdown run.  Cincinnati's lead would increase as Palmer got another 1-yard touchdown run, yet the Raiders would close out the half with Gradkowski completing a 10-yard touchdown pass to tight end Zach Miller. In the third quarter, Oakland continued to rally as kicker Sebastian Janikowski got a 52-yard field goal.  The Bengals would answer with kicker Shayne Graham nailing a 25-yard field goal.  The Raiders would tie the game in the fourth quarter as Gradkowski found rookie wide receiver Louis Murphy on a 29-yard touchdown pass.  Afterwards, after recovering a special team fumble from Cincinnati wide receiver Andre Caldwell, Oakland took advantage as Janikowski booted the game-winning 33-yard field goal.
Question: How many of the touchdowns were passing touchdowns?
Answer: 2