Input: Treaty
There are three ways an existing treaty can be amended. First, formal amendment requires State parties to the treaty to go through the ratification process all over again. The re-negotiation of treaty provisions can be long and protracted, and often some parties to the original treaty will not become parties to the amended treaty. When determining the legal obligations of states, one party to the original treaty and one a party to the amended treaty, the states will only be bound by the terms they both agreed upon. Treaties can also be amended informally by the treaty executive council when the changes are only procedural, technical change in customary international law can also amend a treaty, where state behavior evinces a new interpretation of the legal obligations under the treaty. Minor corrections to a treaty may be adopted by a procès-verbal; but a procès-verbal is generally reserved for changes to rectify obvious errors in the text adopted, i.e. where the text adopted does not correctly reflect the intention of the parties adopting it.

How many ways are there to amend an existing treaty?
Output: three

Input: Middle Ages
The large external sculptural schemes of Early Gothic churches gave way to more sculpture inside the building, as tombs became more elaborate and other features such as pulpits were sometimes lavishly carved, as in the Pulpit by Giovanni Pisano in Sant'Andrea. Painted or carved wooden relief altarpieces became common, especially as churches created many side-chapels. Early Netherlandish painting by artists such as Jan van Eyck (d. 1441) and Rogier van der Weyden (d. 1464) rivalled that of Italy, as did northern illuminated manuscripts, which in the 15th century began to be collected on a large scale by secular elites, who also commissioned secular books, especially histories. From about 1450 printed books rapidly became popular, though still expensive. There were around 30,000 different editions of incunabula, or works printed before 1500, by which time illuminated manuscripts were commissioned only by royalty and a few others. Very small woodcuts, nearly all religious, were affordable even by peasants in parts of Northern Europe from the middle of the 15th century. More expensive engravings supplied a wealthier market with a variety of images.

When did Rogier van der Weyden die?
Output: 1464

Input: Department store
The iconic department stores of New Zealand's three major centres are Smith & Caughey's (founded 1880), in New Zealand's most populous city, Auckland; Kirkcaldie & Stains (founded 1863) in the capital, Wellington; and Ballantynes (founded 1854) in New Zealand's second biggest city, Christchurch. These offer high-end and luxury items. Additionally, Arthur Barnett (1903) operates in Dunedin. H & J Smith is a small chain operating throughout Southland with a large flagship store in Invercargill. Farmers is a mid-range national chain of stores (originally a mail-order firm known as Laidlaw Leeds founded in 1909). Historical department stores include DIC. Discount chains include The Warehouse, Kmart Australia, and the now-defunct DEKA.

What sorts of goods do the most popular department stores in New Zealand offer? 
Output: high-end and luxury items

Input: Cyprus
The Turkish invasion, followed by occupation and the declaration of independence of the TRNC have been condemned by United Nations resolutions, which are reaffirmed by the Security Council every year. The last major effort to settle the Cyprus dispute was the Annan Plan in 2004, drafted by the then Secretary General, Kofi Annan. The plan was put to a referendum in both Northern Cyprus and the Republic of Cyprus. 65% of Turkish Cypriots voted in support of the plan and 74% Greek Cypriots voted against the plan, claiming that it disproportionately favoured the Turkish side. In total, 66.7% of the voters rejected the Annan Plan V. On 1 May 2004 Cyprus joined the European Union, together with nine other countries. Cyprus was accepted into the EU as a whole, although the EU legislation is suspended in the territory occupied by Turkey (TRNC), until a final settlement of the Cyprus problem. In July 2006, the island served as a haven for people fleeing Lebanon, due to the conflict between Israel and Hezbollah (also called "The July War").

In what year did Cyprus join the European Union?
Output:
2004