In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

Example Input: Question: which phase of sleep is the longest? Passage:Von Economo, in his studies, noticed that lesions in the connection between the midbrain and the diencephalon caused prolonged sleepiness and therefore proposed the idea of an ascending arousal system. During the past few decades major ascending pathways have been discovered with located neurons and respective neurotransmitters. This pathway divides into two branches: one that ascends to the thalamus and activates the thalamus relay neurons, and another one that activates neurons in the lateral part of the hypothalamus and the basal forebrain, and throughout the cerebral cortex. The cell group involved in the first pathway is an acetylcholine-producing cell group called pedunculopontine and laterodorsal tegmental nucleus(PPT/LDT). These neurons play a crucial role in bridging information in between the thalamus and the cerebral cortex. These neurons have high activation during wakefulness and during REM sleep and a low activation during NREM sleep. The second branch originates from monoaminorgenic neurons. These neurons are located in the locus coeruleus, dorsal and median raphe nuclei, ventral periaqueductal grey matter, and tuberomammillary nucleus. Each group produces a different neurotransmitter. The neurons in the locus coeruleus produce noradrenaline, as fore the neurons in the dorsal and median raphe nuclei, ventral periaqueductal grey matter, and tuberomammillary nucleus produce serotonin, dopamine and histamine respectively. They then project onto the hypothalamic peptidergic neurons, which contain melanin-concentrated hormones or orexin, and basal forebrain neurons which contain GABA and acetylcholine. These neurons then project onto the cerebral cortex. It has also been discovered that lesions to this part of the brain cause prolonged sleep or may produce coma.

Example Output: These neurons have high activation during wakefulness and during REM sleep and a low activation during NREM sleep

Example Input: Question: How old was Leopoldo Calvo-Sotelo when elected president? Passage:During the process of electing Leopoldo Calvo-Sotelo as Spain's new president in February 1981, Civil Guards and army members broke into the Congress of Deputies and held all deputies at gunpoint. One of the reasons that led to the coup d'etat was the increase of ETA's violence. The coup failed after the King called for the military powers to obey the Constitution. Days after the coup, ETA's faction politiko-militarra started its disbanding, with most of its members joining Euskadiko Ezkerra, a leftist nationalist party away from the Abertzale left. General elections were held in 1982, and Felipe Gonzalez, from the Socialist Workers' Party became the new president, while Herri Batasuna won two seats. In the Basque Country, Carlos Garaikoetxea from the PNV became lehendakari in 1979. During those years, hundreds of members of Herri Batasuna were arrested, especially after some of them sang the Eusko Gudariak in front of Juan Carlos I.

Example Output: During the process of electing Leopoldo Calvo-Sotelo as Spain's new president in February 1981, Civil Guards and army members broke into the Congress of Deputies and held all deputies at gunpoint

Example Input: Question: Is there a difference in the age of the horses entered to compete in the Royal Lodge Stakes compared to the Sussex Stakes? Passage:Cecil's success in 2011 was partly due to his training of the Khalid Abdullah-owned Frankel. In the 2010 season Frankel won the Royal Lodge Stakes and Group One Dewhurst Stakes. The following year he continued unbeaten, winning the Greenham Stakes, the 2,000 Guineas, the St. James's Palace Stakes at Royal Ascot, the Sussex Stakes and the Queen Elizabeth II Stakes. His six length victory in the 2,000 Guineas was described as "one of the greatest displays on a British racecourse". After his win in the Sussex Stakes Cecil himself described Frankel as "the best horse I've ever seen". Timeform and the International Federation of Horseracing Authorities rated him the best horse in the world. In his four-year-old season Frankel won the Group One Lockinge Stakes at Newbury before an eleven length victory in the Queen Anne Stakes at Royal Ascot, described in one national newspaper as "possibly the best single performance by any horse, on any track, since three Arabian stallions were imported into Britain to found the thoroughbred breed in the early years of the 18th century". Timeform raised their rating to 147, making Frankel the highest rated horse in their history. He won a second Sussex Stakes, at odds of 120, and then stepped up in distance to win by seven lengths the Juddmonte International Stakes at York over 10 furlongs. In October 2012 Frankel won the Champion Stakes at Ascot to finish his career unbeaten. "He's the best I've ever had, the best I've ever seen", Cecil told the BBC after the race, "I'd be very surprised if there's ever been a better."

Example Output:
In the 2010 season Frankel won the Royal Lodge Stakes and Group One Dewhurst Stakes