Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Context: Coming off their divisional home win over the Cardinals, the 49ers flew to the Edward Jones Dome for a Week 2 divisional duel against their NFC West rival, the St. Louis Rams. In the first quarter, the Niners trailed early as Rams QB Marc Bulger completed a 12-yard TD pass to WR Torry Holt for the only score of the period. In the second quarter, San Francisco would tie the game up with RB Frank Gore getting a 1-yard TD run. St. Louis would take the halftime lead with kicker Jeff Wilkins getting a 29-yard field goal In the third quarter, the 49ers took the lead with Gore breaking through a gang of tacklers for a 43-yard TD run, along with the only score of the period. In the fourth quarter, the Rams retook the lead with Wiklins getting a 53-yard field goal. Fortunately, thanks to a St. Louis goof-up on special teams, the Niners took the lead with kicker Joe Nedney getting a 40-yard field goal. Near the end the game, the Rams had one last chance to win the game. Fortunately for San Francisco, Wilkins' 56-yard field goal attempt fell about a yard short of the crossbar. With the win, the 49ers improved to 2-0 for the first time since 1998. Q1 - STL - 6:04 - 12-yard TD pass from Marc Bulger to Torry Holt (Wilkins kick) (STL 7-0) Q2 - SF - 14:57 - Frank Gore 1-yard TD run (Nedney kick) (7-7) Q2 - STL - 9:04 - Jeff Wilkins 27-yard FG (STL 10-7) Q2 - STL - 1:51 - Jeff Wilkins 29-yard FG (STL 13-7) Q3 - SF - 2:43 - Frank Gore 43-yard TD run (Nedney kick) (SF 14-13) Q4 - STL - 10:04 - Jeff Wilkins 53-yard FG (STL 16-14) Q4 - SF - 3:23 - Joe Nedney 40-yard FG (SF 17-16) 
 Question: How did the 49ers take the lead in the fourth quarter?
joe nedney

Context: The Rams started their season on the road against the Lions. The Rams drew first blood in the first quarter with a 48-yard field goal from Greg Zuerlein to take a 3-0 lead for the only score of that quarter. The Lions then took a 7-3 lead with Joique Bell's 1-yard run for a touchdown in the 2nd quarter. The Rams responded with a 29-yard field goal from Zuerlein as they came up within a point 7-6 before on the Lions' next possession, Matthew Stafford was picked off by Cortland Finnegan and it was returned 31 yards for a touchdown as the Rams retook the lead 13-7. The Lions then responded with Jason Hanson kicking a 41-yard field goal to shorten the Rams' lead to 13-10 at halftime. After the break, the Lions scored first with Jason Hanson kicking a 45-yard field goal to tie the game 13-13 for the only score of the 3rd quarter. However, the Rams moved back into the lead in the 4th quarter with Brandon Gibson's 23-yard catch from Sam Bradford to make it 20-13. The Lions tied the game back up with Kevin Smith running for a touchdown from 5 yards out to tie the game 20-20. The Rams then retook the lead with Greg Zuerlein kicking a 46-yard field goal to make the score 23-20. On their last possession, the Lions moved down the field and Matthew Stafford found Kevin Smith on a 5-yard touchdown pass to make the final score 27-23 as the Rams began their season 0-1. 
 Question: Who kicked the longest field goal in the last quarter?
greg zuerlein

Context: Last week a study of one hundred ninety-nine countries confirmed what many people may have already noticed. People around the world are getting fatter. The study found that obesity has almost doubled since 1980. Majid Ezzati, who led the research team, says the results show that obesity, high blood pressure and high blood pressure are no longer just found in wealthy nations. These are now worldwide problems. The study appeared shows that in 2008, almost ten percent of men were obese. That was up from about five percent in 1980. That same year, almost eight percent of women were obese. By 2008, the rate of obesity among women was almost fourteen percent. Obesity is commonly measured by body mass index , or BMI. This is a measure of a person's weight in relation to height. A person with a BMI of twenty-five to twenty-nine is considered overweight. The World Health Organization defines obesity as a body mass index of thirty or more. Pacific island nations have an average BMI of around thirty-five -- the highest in the world. But the study found that the United States had the single highest average among wealthy countries. Men and women had an average BMI of over twenty-eight. New Zealand was next. Japan had the lowest, at about twenty-two for women and twenty-four for men. The report had some good news, however, about high blood pressure. The percentage of people with this major cause of heart attacks and strokes has fallen since 1980. Dr. Ezzati credits improved testing and treatment in wealthy countries. He says a decrease in the use of salt and unhealthful fats probably also helped. In the United States, new guidelines urge Americans to reduce salt, sugar and fatty meats and to eat more fish and whole grains. People are being urged to choose water over sugared drinks and to eat more fruits and vegetables. But whatever they eat, Americans are being urged to follow new advice from the government: eat less. 
 Question: According to the passage, which country has the lowest BMI among wealthy countries?

japan