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.

Input: Consider Input: Question: How many years did it take to develop the Sierra turbo? Passage:The second year of Group A in Australia saw the domination of the JPS Team BMW team fade with several other teams pushing forwards. Most spectacularly was the return of Nissan Motorsport Australia (now under the leadership of former Bathurst winner Fred Gibson) with the newly homologated Nissan Skyline DR30 RS turbo. Led by long time Nissan lead driver George Fury they were the main rival for another new team, the John Sheppard run Volvo Dealer Team, a factory supported team which succeeded the Mark Petch Motorsport Volvo team of 1985. The Touring Car Championship became a two horse race between Volvo's Robbie Francevic and Fury. Fury was never able to haul in Francevic's early points lead and Francevic was crowned champion. Francevic was fired from the Volvo Dealer Team by Sheppard the day after the Castrol 500 at Sandown after refusing to drive what he believed would be an un-competitive car which had only been completed at the meeting started. He then returned to the Mark Petch team as they began development of a Ford Sierra turbo. Although Francevic won the ATCC in the car, 1986 was the last time the Volvo 240T was seen in Australian touring car racing.

Output: He then returned to the Mark Petch team as they began development of a Ford Sierra turbo

Input: Consider Input: Question: Which of the decidousous plants that border Igelbacken is the most abundant in the world? Passage:The upper part of the watershed is constituted of Norra Jarvafaltet, an open-air area characterized by moraine ridges covered with forests separated by water meadows and tilled fields. While some 20 hectares of the surrounding area is used for pasture, the stream is bordered by deciduous plants such as Alder and Birch and Bulrush can be found in non-shadowed patches. Some 2,5 kilometres from its origin, the stream passes down in a culvert under a traffic route (Akallavagen) and the Barkarby Airport before merging with the stream Djupanbacken. This part of the catchment area contains a motocross track, a golf driving range, a closed dump, and receives stormwater from the E18 traffic route. Thereafter, the stream flows some 4km in the valley separating the suburbs Akalla-Hjulsta and Tensta-Rinkeby and where are several rural structures including an ecological farm (Hasta Gard), eight allotment-gardens, and some minor overgrown wetlands. East of the valley the river is crossed by a second traffic route (Kymlingelanken) before flowing 2,5km through an open grassland to reach a railway and the E4 traffic route, water from the latter treated in a local cleaning plant. The last 1.4km passes more allotment-gardens and the gardens of the Ulriksdal Palace before jumping into Edsviken through a low dam.

Output: While some 20 hectares of the surrounding area is used for pasture, the stream is bordered by deciduous plants such as Alder and Birch and Bulrush can be found in non-shadowed patches

Input: Consider Input: Question: Who founded the record label that signed the group in 1956? Passage:The group was signed to Mercury in 1956, and were also spotted by film producer Sam Katzman. He offered them a part in Rock Around the Clock, the first rock and roll movie, starring Bill Haley. The first single for their new label was shared with Jerry Wallace, who later hit with "How The Time Flies" on Challenge. This record, on the Mercury subsidiary Wing Records was "I Said It And I'm Glad" b/w Jerry Wallace, "Eyes Of Fire Lips Of Wine", which was released February 27, 1956. Their second single was released on the same date. The A-side "Ding Dong", was written by Bell and his friend Pep Lattanzi in 1953. Later known as "Giddy Up a Ding Dong", it was not a hit in the United States, but it was popular in Australia, France, and the UK, where it climbed to number four in the UK Singles Chart. The publicity for the single said, "If these sides don't move you, see a doctor you're dead." The lyrics to the song are about a horse ride, with a definite western flavor, with the music having a loping, horse like cadence. The group also appeared in the 1956 film, Rumble on the Docks. In 1957, they became one of the first American rock and roll acts to tour the UK in 1956 when they supported Tommy Steele.
Output: The group was signed to Mercury in 1956, and were also spotted by film producer Sam Katzman