instruction:
In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.
question:
Passage: The bulk of the larger states, and some groups of small states, were integrated through a different, four-step process. The first step in this process was to convince groups of large states to combine to form a "princely union" through the execution by their rulers of Covenants of Merger. Under the Covenants of Merger, all rulers lost their ruling powers, save one who became the Rajpramukh of the new union. The other rulers were associated with two bodiesthe council of rulers, whose members were the rulers of salute states, and a presidium, one or more of whose members were elected by the rulers of non-salute states, with the rest elected by the council. The Rajpramukh and his deputy Uprajpramukh were chosen by the council from among the members of the presidium. The Covenants made provision for the creation of a constituent assembly for the new union which would be charged with framing its constitution. In return for agreeing to the extinction of their states as discrete entities, the rulers were given a privy purse and guarantees similar to those provided under the Merger Agreements.Through this process, Patel obtained the unification of 222 states in the Kathiawar peninsula of his native Gujarat into the princely union of Saurashtra in January 1948, with six more states joining the union the following year. Madhya Bharat emerged on 28 May 1948 from a union of Gwalior, Indore and eighteen smaller states. In Punjab, the Patiala and East Punjab States Union was formed on 15 July 1948 from Patiala, Kapurthala, Jind, Nabha, Faridkot, Malerkotla, Nalargarh, and Kalsia. The United State of Rajasthan was formed as the result of a series of mergers, the last of which was completed on 15 May 1949. Travancore and Cochin were merged in the middle of 1949 to form the princely union of Travancore-Cochin. The only princely states which signed neither Covenants of Merger nor Merger Agreements were Kashmir, Mysore and Hyderabad.
Question: What was the name of the union that was formed between Gwalior, Indore and eighteen smaller states?
answer:
Madhya Bharat.

question:
Passage: The company, retaining the title "Sadler's Wells Opera", opened at the Coliseum on 21 August 1968, with a new production of Mozart's Don Giovanni, directed by Sir John Gielgud. Though this production was not well received, the company rapidly established itself with a succession of highly praised productions of other works. Arlen died in January 1972, and was succeeded as managing director by Lord Harewood.The success of the 1968 Mastersingers was followed in the 1970s by the company's first Ring cycle, conducted by Goodall, with a new translation by Andrew Porter and designs by Ralph Koltai. The cast included Norman Bailey, Rita Hunter and Alberto Remedios. In Harewood's view, among the highlights of the first ten years at the Coliseum were the Ring, Prokofiev's War and Peace, and Richard Strauss's Salome and Der Rosenkavalier.
The company's musical director from 1970 to 1977 was Charles Mackerras. Harewood praised his exceptional versatility, with a range "from The House of the Dead to Patience." Among the operas he conducted for the company were Handel's Julius Caesar starring Janet Baker and Valerie Masterson; five Janacek operas; The Marriage of Figaro with pioneering use of 18th century performing style; Massenet's Werther; Donizetti's Mary Stuart with Baker; and Sullivan's Patience. The company took the production of the last to the Vienna Festival in 1975, along with Britten's Gloriana. Sir Charles Groves succeeded Mackerras as musical director from 1978 to 1979, but Groves was unwell and unhappy during his brief tenure. Starting in 1979, Mark Elder succeeded Groves in the post, and described Groves "immensely encouraging and supportive".A long-standing concern of Arlen and then Harewood was the need to change the company's name to reflect the fact that it was no longer based at Sadler's Wells theatre. Byam Shaw commented "The one major setback the Sadler's Wells Opera Company suffered from its transplant was that unheeding taxi drivers kept on taking their patrons up to Rosebery Avenue".Harewood considered it an elementary rule that "you must not carry the name of one theatre if you are playing in another one." Covent Garden, protective of its status, objected to the suggestion that the Sadler's Wells company should be called "The British National Opera" or "The National Opera", although neither Scottish Opera nor the Welsh National Opera opposed such a change. Eventually the British government decided the matter, and the title "English National Opera" was approved. The company's board adopted the new name in November 1974. In 1977, in response to demand for more opera productions in English provincial cities, a second company was established. It was based at Leeds in northern England, and was known as ENO North. Under Harewood's guidance, it flourished, and in 1981 it became an independent company, Opera North.
Question: What is the first name of the person who unwell and unhappy during his brief tenure?
answer:
Charles.

question:
Passage: "Freedom of the seas" is a principle in international law dating from the seventeenth century. It stresses freedom to navigate the oceans and disapproves of war fought in international waters. Today, this concept is enshrined in the United Nations Convention on the Law of the Sea (UNCLOS), the third version of which came into force in 1994. Article 87(1) states: "The high seas are open to all states, whether coastal or land-locked." Article 87(1) (a) to (f) gives a non-exhaustive list of freedoms including navigation, overflight, the laying of submarine cables, building artificial islands, fishing and scientific research. The safety of shipping is regulated by the International Maritime Organization. Its objectives include developing and maintaining a regulatory framework for shipping, maritime safety, environmental concerns, legal matters, technical co-operation and maritime security.UNCLOS defines various areas of water. "Internal waters" are on the landward side of a baseline and foreign vessels have no right of passage in these. "Territorial waters" extend to 12 nautical miles (22 kilometres; 14 miles) from the coastline and in these waters, the coastal state is free to set laws, regulate use and exploit any resource. A "contiguous zone" extending a further 12 nautical miles allows for hot pursuit of vessels suspected of infringing laws in four specific areas: customs, taxation, immigration and pollution. An "exclusive economic zone" extends for 200 nautical miles (370 kilometres; 230 miles) from the baseline. Within this area, the coastal nation has sole exploitation rights over all natural resources. The "continental shelf" is the natural prolongation of the land territory to the continental margin's outer edge, or 200 nautical miles from the coastal state's baseline, whichever is greater. Here the coastal nation has the exclusive right to harvest minerals and also living resources "attached" to the seabed.
Question: How many nautical miles does the does the coastal nation have sole exploitation rights over natural resources?
answer:
200 nautical miles.