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.

[EX Q]: Question: When did the program on which song made its premier first air? Passage:A preview of the video was posted on AOL's PopEater.com, and subsequently on Bieber's VEVO channel, including behind the scenes clips of Bieber with the dancers, and highlights of the video with Usher and in front of a green screen. Bieber said, "It's really awesome to be able to work with professional dancers, you know, people that were in, like, ABDC, and also got an approval from choreographer Jamaica, who said Bieber was "killing it" and that she didn't have to give him any corrections. It made its premiere during the June 17, 2010 results show of the seventh season of So You Think You Can Dance, and was introduced by Usher after his performance of "OMG". It later premiered that night on VEVO and on June 18, 2010 on 20/20at the end of their show. The video features dance crews including, America's Best Dance Crew season 5 winners Poreotics, and Season 3's runner up Beat Freaks, as well as The Syrenz, LXD, Medea Sirkas, solo acts Simrin Player and Bboy Fly, and other dancers and crews. Singer/actress and model Katerina Graham makes a cameo in a scene with Poreotics. Bieber's best friend Ryan Butler, who appeared in the "One Time" video, also appears alongside Bieber, wearing a T-shirt advertising his Twitter account. According to Tamar Antai of MTV News the video "makes vague allusions" to clips for Busta Rhymes' "Pass the Courvoisier, Part II" and Chris Brown's "Wall to Wall". A backpack choreography scene with LXD recalls Usher's 1997 video for "You Make Me Wanna".

[EX A]: It made its premiere during the June 17, 2010 results show of the seventh season of So You Think You Can Dance, and was introduced by Usher after his performance of "OMG"

[EX Q]: Question: How many companies have offices in the tallest building in Dubai? Passage:Dubai, the largest city in the United Arab Emirates, is home to many modern high-rises, 108 of which stand taller than . The tallest building in Dubai is the Burj Khalifa, which rises and contains 163 floors. The tower has stood as both the tallest building in the world and the tallest man-made structure of any kind in the world since its completion in January 2010. The second-tallest building in Dubai is the Marina 101, which also stands as the world's second tallest residential skyscraper. The skyscrapers of Dubai are, for the most part, clustered in three different locations. The land along E 11 Road was the first to develop, followed by the Dubai Marina neighborhood and the Business Bay district.

[EX A]: The tallest building in Dubai is the Burj Khalifa, which rises and contains 163 floors

[EX Q]: Question: Which ruler died first? Passage:In the spring of 1902, Bulgaria, an Ottoman vassal state which was interested in acquiring Macedonia, signed a military convention with Russia. Late in the fall, Russia, supported by the United Kingdom and France, proposed to the Ottomans political reforms for the Macedonian vilayets. On 8 December, the Ottoman sultan, Abdul Hamid II, signed a decree implementing most of the reforms. In February 1903, the new Russian foreign minister, Vladimir Lamsdorf, visited Vienna and signed the so-called "Vienna Program" on Macedonian reforms. The program was substantially the same as the Ottoman decree of December. The immediate provocation of a new agreement at Mürzsteg was the Ilinden–Preobrazhenie Uprising that broke out on 2 August. With its quick suppression, the Vienna Program lay dead. In September Tsar Nicholas II of Russia visited the Emperor Francis Joseph of Austria-Hungary at the latter's castle in Mürzsteg, Austria. The two rulers put their signatures to a new memorandum, substantially identical to the Vienna Program, which called for the appointment of one Russian and one Austro-Hungarian civil agent to oversee the reform of the administration, judiciary and local gendarmerie in the Macedonian vilayets. In all these institutions Christians were to take part. After Abdul Hamid accepted the proposal in November, Russia appointed one N. Demerik as its agent, and Austria chose one G. Müller. They began their work under Hüseyin Hilmi Pasha, the Inspector-General of Macedonia, in early 1904. Under the Mürzsteg program, each Great Power appointed an advisory official to the Ottoman official in charge of reforming the gendarmerie in each province. Austria-Hungary appointed an advisor to the sanjak of Üsküp, Russia to the sanjak of Thessaloniki, France to the sanjak of Siroz and Britain to the sanjak of Drama.

[EX A]:
In September Tsar Nicholas II of Russia visited the Emperor Francis Joseph of Austria-Hungary at the latter's castle in Mürzsteg, Austria