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: What did Ahmad Sanjar build the wall out of? Passage:The Abbasid-era geographers report that the town was the centre of a flourishing agricultural region, with a number of dependent suburbs such as Qasr-i Ahnaf. According to al-Muqaddasi, who wrote in ca. 980, the locals were kin of the people of Gharjistan, and the town was a dependency of the rulers, or Shirs, of Gharjistan. A section of the Harbiyya district of the Round city of Baghdad was named Marwrūdiyya () after the people from this city. The town continued to flourish under the Seljuk Empire, when the Seljuk ruler Ahmad Sanjar built the city a new wall, some 5,000 paces in circumference. The town and the surrounding area suffered during the constant conflicts between the Khwarazmshahs and the Ghurids in the late 12th century, and a battle was fought there between the Ghurid ruler Ghiyath al-Din Muhammad (r. 1163–1202) and his Khwarazmian rival Sultan Shah (r. 1172–1193) in 1190. Although the town appears to have escaped the destruction of Marw al-Shahijan by the Mongols, it fell into ruin under the Timurids and was largely abandoned.


Output: The town continued to flourish under the Seljuk Empire, when the Seljuk ruler Ahmad Sanjar built the city a new wall, some 5,000 paces in circumference


Input: Consider Input: Question: When was the company that certified the song's "gold" status founded? Passage:After selling 25,000 copies and earning 68,000 album-equivalent units within three days, Heartbreak on a Full Moon debuted at number three on the US Billboard 200, becoming Brown's ninth consecutive top 10 album on the chart. The album was Brown's seventh solo album to debut at number one on the Billboard Top R&B/Hip-Hop Albums chart. On November 8, 2017, Heartbreak on a Full Moon was certified gold by the Recording Industry Association of America for combined sales and album-equivalent units of over 500,000 units in the United States (in this case, 250,000 double album sets, which are double-counted by the RIAA). Brown became the first R&B male artist that went gold in a week since Usher's Confessions in 2004. In its second chart week, the album remained at number three on Billboard 200, with 73,000 album-equivalent units. In Australia, it entered the ARIA Albums Chart at number five, becoming his first top ten in the nation since X in 2014. In the United Kingdom, the album debuted at number 10 on the UK Albums Chart, Brown's sixth non-consecutive top 10 album on the chart. The album was eventually certified Silver by the British Phonographic Industry (BPI) for sales of over 60,000 copies in the UK. In New Zealand, the album debuted at number three on the RMNZ Albums Chart, giving Brown his seventh top ten album on the chart. Until June 2018, the album has accumulated over 3 billion streams worldwide.


Output: On November 8, 2017, Heartbreak on a Full Moon was certified gold by the Recording Industry Association of America for combined sales and album-equivalent units of over 500,000 units in the United States (in this case, 250,000 double album sets, which are double-counted by the RIAA)


Input: Consider Input: Question: When did the war that Eyre served as a rifle brigade officer begin? Passage:A Rifle Brigade officer, he served in the Crimean War, being present at the siege and fall of Sebastopol and wounded at the assault of the Redan. He served throughout the Indian Mutiny and was present at the taking of Lucknow, capture of Mynponee and operations in the Central India Campaign on the Ram Gunga River. He was present in the actions of Gwalior (included a mention in the despatch of Sir Hugh Rose) and the capture of Kalpi with the Camel Corps. This unit was formed from four officers and 100 men from the 2nd and 3rd Battalions Rifle Brigade. An elite unit, the officers were carefully picked due to the required level in independent command. He retired from the army in 1858 and entered the Militia.



Output: A Rifle Brigade officer, he served in the Crimean War, being present at the siege and fall of Sebastopol and wounded at the assault of the Redan