Task: Question Answering
Input (English): Context: Bruce Gradkowski came into the game as Oakland's starter at Quarterback, trying to cap on his gamewinning performance last week vs. St. Louis Arizona started the game with a 102-yard kickoff return from LaRod Stephens-Howling. The Raiders answered quickly though when Gradkowski completed a 22-yard pass to tight-end Zach Miller. This was followed by three field goals, two for Oakland, one for Arizona, and Oakland led 13-10 at the end of the first quarter. Both Gradkowski and Derek Anderson then traded touchdowns and the Raiders led 20-17 at the half. Anderson helped Arizona take the lead late in the third quarter with an 8-yard touchdown pass to Larry Fitzgerald. Arizona led 24-20 at the end of the third quarter. Sebastian Janikowski made the lead 24-23 with another field goal in the fourth quarter. Arizona held on for the win after Janikowski missed a 32-yard field goal as time expired. Both the Raiders and Cardinals committed numerous mistakes, including two muffed punts by Arizona. Oakland committed 11 penalties for 123yards, Arizona seven for 104. 
 Question: Who team did Oakland beat the week prior to this game?
Output (English): st. louis