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.
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Question: Context: After their season-opening loss to the Chargers, the Bears rebounded by winning their home opener against the Kansas City Chiefs. Bernard Berrian fumbled on the team's opening drive, but a staunch defensive effort held the Chiefs at bay, and eventually allowed the Bears to engineer a successful drive. John St. Clair, a reserve offensive tackle, scored the Bears' first offensive touchdown of the season from a one-yard pass from Rex Grossman. The team forced the Chiefs to punt on their next drive, which was returned for a touchdown by Devin Hester.The Chiefs scored their first points of the game after Damon Huard threw a sixteen-yard touchdown pass to Dwayne Bowe. During halftime, the Bears received the Pro Team Community Award for their charity efforts. The Bears' defense held the Chiefs to only three more points, after forcing pivotal turnovers in two red zone situations and also a blocked field goal attempt. Pro Bowlers Brian Urlacher, Lance Briggs, and Tommie Harris each recorded sacks, and forced Larry Johnson and Huard to leave the game with injuries. Cedric Benson recorded his first one hundred-yard rushing game. With 20-10 win, the Bears advanced to 1-1 record. Q2 - CHI - 10:29 - 2-yard TD pass from Rex Grossman to John St. Clair (Robbie Gould kick) (CHI 7-0) Q2 - CHI - 9:33 - Devin Hester 73-yard punt return TD (Gould kick) (CHI 14-0) Q2 - CHI - 2:30 - Robbie Gould 47-yard FG (CHI 17-0) Q2 - KC - 1:24 - 16-yard TD pass from Damon Huard to Dwayne Bowe (Dave Rayner kick) (CHI 17-7) Q3 - CHI - 8:36 - Robbie Gould 38-yard FG (CHI 20-7) Q3 - KC - 3:12 - Dave Rayner 45-yard FG (CHI 20-10) 
 Question: Who else besides Robbie Gould booted field goal?

Answer: dave rayner


Question: Context: Young people frequently say that they want to exercise, but they just can't find the time. The solution just might be in-office interval training. Recent studies show that very short but intense exercise rapidly builds and maintains fitness and health, even when the workout is only a few minutes long. Work the stairs You can complete an excellent, effective -- and very brief -- workout in an office stairwell, says Martin Gibala, a professor of kinesiology at McMaster University in Canada and an expert on interval training. For a study that he and his colleagues presented earlier this year, they asked 12 out-of-shape women in their 20s to warm up for two minutes by slowly walking up and down stairs in a campus office building. They completed three of these abbreviated stair workouts per week for six weeks. By the end, their aerobic fitness had improved substantially, the researchers reported, by about as much as if they had been running or cycling each week for hours. Fidget your way to fitness. Parents and teachers may once have urged you to sit still, but wiggling, tapping your toes, standing briefly, and otherwise fidgeting as much as possible at your desk is in fact good for your body. In one recent study, college students showed healthier blood flow in their lower legs if they fidgeted than if they did not. Even better, a 2008 study found that among office workers, those who frequently fidgeted burned as many as 300 calories more each day than those who resolutely stayed still. 
 Question: How many studies are shown in the passage?

Answer: three


Question: Context: In vivo brain microdialysis was used to assess the effects of tolcapone, a novel central and peripheral inhibitor of catechol-O-methyltransferase on striatal 3,4-dihydroxyphenyl-L-alanine (L-dopa) and dopamine metabolism. The oral administration of 30 mg/kg of tolcapone failed to change dopamine output but elicited a marked and long-lasting decrease of the extracellular levels of homovanillic acid (HVA) and 3-methoxytyramine with a concomitant increase of 3,4-dihydroxyphenylacetic acid (DOPAC). The administration of L-dopa (20 and 60 mg/kg p.o.) + benserazide (15 mg/kg p.o.) resulted in dose-dependent increase of dialysate levels of L-dopa and 3-O-methyl-DOPA. Tolcapone (30 mg/kg p.o.), given as adjunct to both doses of L-dopa, markedly enhanced the elevation or extracellular L-dopa, while it completely prevented the formation of 3-O-methyl-DOPA. In another experiment, the administration of L-dopa + benserazide (30 + 15 mg/kg p.o.) resulted in increased extracellular levels of dopamine, DOPAC, HVA and 3-methoxytyramine. The co-administration of tolcapone (30 mg/kg p.o.) further increased dopamine and DOPAC levels, whereas HVA and 3-methoxytyramine effluxes were reduced. These findings support the notion that tolcapone has the ability to enhance striatal dopamine neurotransmission by increasing L-dopa bioavailability through peripheral and central inhibition of L-dopa O-methylation, as well as by blocking the central conversion of dopamine into 3-methoxytyramine. 
 Question: Which drug is benserazide usually co-administered with?

Answer:
l-dopa