Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Tuvalu participates in the operations of the Pacific Island Forum Fisheries Agency (FFA) and the Western and Central Pacific Fisheries Commission (WCPFC). The Tuvaluan government, the US government, and the governments of other Pacific islands, are parties to the South Pacific Tuna Treaty (SPTT), which entered into force in 1988. Tuvalu is also a member of the Nauru Agreement which addresses the management of tuna purse seine fishing in the tropical western Pacific. In May 2013 representatives from the United States and the Pacific Islands countries agreed to sign interim arrangement documents to extend the Multilateral Fisheries Treaty (which encompasses the South Pacific Tuna Treaty) to confirm access to the fisheries in the Western and Central Pacific for US tuna boats for 18 months. Tuvalu and the other members of the Pacific Island Forum Fisheries Agency (FFA) and the United States have settled a tuna fishing deal for 2015; a longer term deal will be negotiated. The treaty is an extension of the Nauru Agreement and provides for US flagged purse seine vessels to fish 8,300 days in the region in return for a payment of US$90 million made up by tuna fishing industry and US-Government contributions. In 2015 Tuvalu has refused to sell fishing days to certain nations and fleets that have blocked Tuvaluan initiatives to develop and sustain their own fishery.
In what fishery group does Tuvalu participate? 
A: Pacific Island Forum Fisheries Agency

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Xiamen dialect, sometimes known as Amoy, is the main dialect spoken in the Chinese city of Xiamen and its surrounding regions of Tong'an and Xiang'an, both of which are now included in the Greater Xiamen area. This dialect developed in the late Ming dynasty when Xiamen was increasingly taking over Quanzhou's position as the main port of trade in southeastern China. Quanzhou traders began travelling southwards to Xiamen to carry on their businesses while Zhangzhou peasants began traveling northwards to Xiamen in search of job opportunities. It is at this time when a need for a common language arose. The Quanzhou and Zhangzhou varieties are similar in many ways (as can be seen from the common place of Henan Luoyang where they originated), but due to differences in accents, communication can be a problem. Quanzhou businessmen considered their speech to be the prestige accent and considered Zhangzhou's to be a village dialect. Over the centuries, dialect leveling occurred and the two speeches mixed to produce the Amoy dialect.
What city took over Quanzhou's position as the main port of trade in SE China?
A: Xiamen

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The scope of the term "post-punk" has been subject to controversy. While some critics, such as AllMusic's Stephen Thomas Erlewine, have employed the term "post-punk" to denote "a more adventurous and arty form of punk", others have suggested it pertains to a set of artistic sensibilities and approaches rather than any unifying style. Music journalist and post-punk scholar Simon Reynolds has advocated that post-punk be conceived as "less a genre of music than a space of possibility", suggesting that "what unites all this activity is a set of open-ended imperatives: innovation; willful oddness; the willful jettisoning of all things precedented or 'rock'n'roll'". Nicholas Lezard, problematizing the categorization of post-punk as a genre, described the movement as "so multifarious that only the broadest use of the term is possible".
What organization is Stephen Thomas Erlewine associated with?
A: AllMusic

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Another energy-related concept is called the Lagrangian, after Joseph-Louis Lagrange. This formalism is as fundamental as the Hamiltonian, and both can be used to derive the equations of motion or be derived from them. It was invented in the context of classical mechanics, but is generally useful in modern physics. The Lagrangian is defined as the kinetic energy minus the potential energy. Usually, the Lagrange formalism is mathematically more convenient than the Hamiltonian for non-conservative systems (such as systems with friction).
Who is the Lagrangian named after?
A:
Joseph-Louis Lagrange