Hoping to build on their win over the Falcons, the Lions stayed at home for their match-up against the San Francisco 49ers.  In the first quarter, the Lions trailed as Niners RB Frank Gore got a 61-yard TD run, while kicker Joe Nedney got a 28-yard field goal.  In the second quarter, Nedmey helped San Francisco get a 23-yard field goal, while Lions kicker Jason Hanson got a 25-yard field goal.  In the third quarter, Nedney gave the 49ers a 23-yard field goal, while Lions QB Jon Kitna threw an 8-yard TD pass to TE Dan Campbell.  In the fourth quarter, Nedney helped the Niners get a 47-yard field goal, while the Lions could only get a 33-yard field goal by Hanson.  With the loss, the Lions fell to 2-7.
Question: In which quarters were only field goals scored?
Answer: second | fourth