In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Input: Consider Input: Which ship is older, the America, or the Enterprise?, Context: With the deactivation of USS Enterprise in December 2012, the U.S. fleet comprises 10 supercarriers. The House Armed Services Seapower subcommittee on 24 July 2007, recommended seven or maybe eight new carriers (one every four years). However, the debate has deepened over budgeting for the $12–14.5 billion (plus $12 billion for development and research) for the 100,000 ton Gerald R. Ford-class carrier (estimated service 2016) compared to the smaller $2 billion 45,000 ton America-class amphibious assault ships, which are able to deploy squadrons of F-35Bs. The first of this class, USS America, is now in active service with another, USS Tripoli, under construction and 9 more are planned.

Output: Enterprise


Input: Consider Input: What needs consistency?, Context: The simplest valve gears give events of fixed length during the engine cycle and often make the engine rotate in only one direction. Most however have a reversing mechanism which additionally can provide means for saving steam as speed and momentum are gained by gradually "shortening the cutoff" or rather, shortening the admission event; this in turn proportionately lengthens the expansion period. However, as one and the same valve usually controls both steam flows, a short cutoff at admission adversely affects the exhaust and compression periods which should ideally always be kept fairly constant; if the exhaust event is too brief, the totality of the exhaust steam cannot evacuate the cylinder, choking it and giving excessive compression ("kick back").[citation needed]

Output: exhaust and compression periods


Input: Consider Input: When did Tito create his own rule?, Context: Tito was the chief architect of the second Yugoslavia, a socialist federation that lasted from 1943 to 1991–92. Despite being one of the founders of Cominform, soon he became the first Cominform member to defy Soviet hegemony and the only one to manage to leave Cominform and begin with its own socialist program. Tito was a backer of independent roads to socialism (sometimes referred to as "national communism"). In 1951 he implemented a self-management system that differentiated Yugoslavia from other socialist countries. A turn towards a model of market socialism brought economic expansion in the 1950s and 1960s and a decline during the 1970s. His internal policies included the suppression of nationalist sentiment and the promotion of the "brotherhood and unity" of the six Yugoslav nations. After Tito's death in 1980, tensions between the Yugoslav republics emerged and in 1991 the country disintegrated and went into a series of wars and unrest that lasted the rest of the decade, and which continue to impact most of the former Yugoslav republics. He remains a very controversial figure in the Balkans.
Output: 1951