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.

[Q]: Question: What were the names of the brothers who originally recorded the only single taken off Upfront Down Low? Passage:Teddy's third album, Upfront & Down Low, was released on Verve Forecast in the United States on 17 July 2007, and in the UK and Europe later in 2007. The album contains covers of many of Teddy's favourite country songs, plus one of his own compositions, entitled "Down Low". It offers covers of country classics such as George Jones' "She Thinks I Still Care," Ernest Tubb's "Walking the Floor Over You", and Liz Anderson's "(My Friends Are Gonna Be) Strangers", made famous by Merle Haggard. Lesser-known songs include Felice and Boudleaux Bryant's "Change of Heart" (originally recorded by The Everly Brothers), Dolly Parton's bittersweet "My Blue Tears," Bob Luman's "Let's Think About Living", and the Elvis Presley "I'm Left, You're Right, She's Gone." Six tracks feature string arrangements by English arranger Robert Kirby, renowned for his work with Nick Drake. "My Blue Tears" features strings arranged by Thompson cohort Rufus Wainwright. The only single taken off Upfront & Down Low was "Change of Heart".

[A]: Lesser-known songs include Felice and Boudleaux Bryant's "Change of Heart" (originally recorded by The Everly Brothers), Dolly Parton's bittersweet "My Blue Tears," Bob Luman's "Let's Think About Living", and the Elvis Presley "I'm Left, You're Right, She's Gone

[Q]: Question: How many groups were stationed at RAAF Station Pearce in August 1940 when Charlesworth was in command? Passage:As part of the RAAF's reorganisation following the outbreak of World War II in September 1939, No.2 Group was formed in Sydney on 20November; Charlesworth was appointed its Senior Air Staff Officer (SASO). He continued to serve in this position when the group was re-formed as Central Area in March 1940. Posted to Western Australia to take command of RAAF Station Pearce in August, he was promoted to temporary group captain on 1September 1940. He became Senior Administration Officer at the newly established Western Area, Perth, in January the following year. In September 1942, Charlesworth took over No.2 Bombing and Gunnery School in Sale, Victoria. He handed over to Group Captain Charles "Moth" Eaton in August 1943, before briefly taking charge of RAAF Headquarters Forward Echelon in Brisbane. Charlesworth was appointed Air Officer Commanding (AOC) Eastern Area, headquartered at Bradfield Park, Sydney, in December 1943. Eastern Area was responsible for maritime patrol and anti-submarine warfare off the coast of New South Wales and southern Queensland. Japanese submarine activity had decreased in the months prior to Charlesworth taking command, and he was concerned that Allied ships were becoming complacent. He observed "a general slackening off in procedure; ships are seldom where they should be, and a minority of merchant ships identify themselves to aircraft". The RAAF's patrols had also settled into a predictable pattern that would have been easy for an observant submarine captain to avoid.

[A]: Posted to Western Australia to take command of RAAF Station Pearce in August, he was promoted to temporary group captain on 1September 1940

[Q]: Question: How many homes did the architect of the Yablanski House design? Passage:The Yablanski House was built in 1906-1907 to the designs of Austro-Hungarian architect Friedrich Grunanger (18561929) on the order of the wealthy financier and former mayor of Sofia Dimitar Yablanski (18591924). The exterior decoration was the work of the royal decorator of the Bulgarian Royal Family, Andreas Greis. Architecturally, the house was designed in the Baroque style with some Renaissance elements, with the interior stucco done in the Rococo style. The mansard floor is an important feature of the house's artistic design, together with the balcony railings of wrought iron and the several female sculptures. The furniture and the materials were specially supplied from Vienna. The house's architecture draws heavily from an earlier work of Grunanger's, the Royal Palace in Sofia. Notably, the architect's home in Salzburg, where he later moved and subsequently died, is almost identical to the Yablanski House.

[A]:
The Yablanski House was built in 1906-1907 to the designs of Austro-Hungarian architect Friedrich Grunanger (18561929) on the order of the wealthy financier and former mayor of Sofia Dimitar Yablanski (18591924)