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 Input:
Question: What was the highest chart ranking of the single written by Chris Martin. Passage:They were signed by Andy McDonald to his Independiente Records label and released the album Out of Nothing, which reached number one in the UK in 2004. The 'comeback' single that preceded this album was "Gravity", which had been written by Coldplay's Chris Martin. Danny McNamara and Martin had become friends after Coldplay had supported Embrace in 2000 in Blackpool. The single was a hit, charting at number seven in the UK Singles Chart. Coldplay have since recorded "Gravity" as a B-side for their single "Talk". In 2004, Radio 1's Live Lounge, Embrace recorded a version of the D12 rap song "How Come". In October 2005, the band released their first compilation, called . It features 18 tracks from singles and EPs across their entire career, including a version of "Blind", an early live favourite which was omitted from their debut album The Good Will Out, as was their Otis Redding-influenced "The Way I Do".

Ex Output:
The 'comeback' single that preceded this album was "Gravity", which had been written by Coldplay's Chris Martin

Ex Input:
Question: Who is the current president of the university that Haydock graduated from? Passage:Haydock was a graduate of Glasgow University and was a travelling salesman for the Clydevale Oil & Colour Company, Bridgeton. In September 1914, one month after the outbreak of the First World War, Haydock enlisted in the Queen's Own Cameron Highlanders. In January 1915, he was commissioned as a second lieutenant in the Cameronians (Scottish Rifles). Haydock saw action at Gallipoli and Palestine before being seriously wounded during an attack on Umbrella Hill during the Third Battle of Gaza on 1 November 1917. He did not return to his battalion until August 1918, after it had been deployed on the Western Front. Haydock was wounded during an attack on the Hindenburg Line, west of Queant on 2 September 1918 and died the same day at a Casualty Clearing Station in Bailleulval. He was buried in Bac-du-Sud British Cemetery, Bailleulval.

Ex Output:
Haydock was a graduate of Glasgow University and was a travelling salesman for the Clydevale Oil & Colour Company, Bridgeton

Ex Input:
Question: When did the war begin that prompted the Navy to build the airport? Passage:In 1950, Admiral Arthur W. Radford, Commander-in-Chief of the United States Pacific Fleet, envisioned an naval base in the Western Pacific to enhance Seventh Fleet capabilities. The Korean War began and the Navy realized it had a need for an air station in the region. Cubi Point in the Philippines was selected, and civilian contractors were initially approached for the project. After seeing the Zambales Mountains and the surrounding jungle, they claimed it could not be done. The U.S. Navy then turned to the Seabees and was told no problem, Can do. The first Seabees to arrive were surveyors of Construction Battalion Detachment 1802. Moblie Comstruction Battalion 3 arrived on 2 October 1951 to get the project going and was joined by MCB 5 in November. Over the next five years, MCBs 2, 7, 9, 11 and CBD 1803 also contributed to the effort. They leveled a mountain to make way for a nearly runway. NAS Cubi Point turned out to be one of the largest earth-moving projects in the world, equivalent to the construction of the Panama Canal. Seabees there moved of dry fill plus another 15 million that was hydraulic fill. The $100million facility was commissioned on 25 July 1956, and comprised an air station with an adjacent pier capable of docking the Navy's largest carriers. Adjusted-for-inflation, today's price-tag for what the Seabees built at Cubi Point would be $906,871,323.53. After decades of use by American forces, Mount Pinatubo erupted in 1991, burying Cubi Point in 18-36 inches of ash. Despite this, the American government wished to keep the Subic Naval Base and signed a treaty with the Philippine government. The treaty was not ratified, however, failing by a slim margin in the Philippine Senate. Attempts to negotiate a new treaty were soon abandoned and the United States was informed that it was to withdraw within one year. U.S. forces withdrew in November 1992, turning over the facility with its airport to the Philippine government.

Ex Output:
The Korean War began and the Navy realized it had a need for an air station in the region