This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.
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Question: Passage: Since the 1980s, US farm subsidies for rice, along with copyright and patent issues, have constituted the "major problems in U.S.-Thai trade ties". The rice subsidy was one of the primary obstacles to the negotiation of a bilateral FTA. Approximately two-thirds of Thailand's population are rice farmers, and the U.S. subsidy "severely strains U.S.-Thai relations as Bangkok finds itself unable to explain the income lost to its 35 million rice farmers". USDA-funded research to produce variants of Jasmine rice capable of growing in the US are viewed as biopiracy by many Thai rice farmers. In 2005, Thai rice farmers gathered outside the US embassy to chant a "traditional ritual to bring misfortune to enemies". Farmer protests also occurred outside the US embassy during the 2001 WTO ministerial meeting in Doha. Thai officials "sharply criticized" the Farm Security and Rural Investment Act of 2002, and retaliated by joining two WTO dispute resolution cases against the US: one against anti-dumping subsidy offsets, and the Shrimp-Turtle Case. According to Oxfam, the US spends US$1.3 billion on rice subsidies annually for a crop that costs US$1.8 billion to grow, allowing the US to become the second largest global rice exporter  and dump rice at 34 percent below the cost of production. Following the election of Obama and the 2008 global financial crisis, there are Thai fears of renewed US protectionism.
Question: How many dollars less is the US paying for rice than it costs to grow?

Answer: number


Question: Passage: The Azov campaigns of 1695-96 , were two Russian military campaigns during the Russo-Turkish War of 1686-1700, led by Peter the Great and aimed at capturing the Turkish fortress of Azov , which had been blocking Russia's access to the Azov Sea and the Black Sea.  Since the Crimean campaigns of 1687 and 1689 had failed because of the difficulty of moving a large army across the steppe, Peter decided to try a river approach.
Question: How many years did the war last?

Answer: number


Question: Passage: When the area was disputed between Weimar Germany and the Second Polish Republic, the Poles recalled the massacre quoting the number of 10,000 murdered. After Nazi Germany had annexed the Free City of Danzig in World War II, the exiled Polish government in releases said that the knights had "massacre ten thousand souls", portrayed the contemporary Germans in the tradition of these events and linked these events with National Socialism. In 1969 the post-war Polish city authorities dedicated a monument that commemorates the massacre of the population of Gdańsk in 1308. Its stated aim was to propagate an analogy of the events of 1308 and the German crimes of World War II. On the monument, called Tym co za Polskość Gdańska , the dates 1308, 1454, 1466 and 1939 are mentioned, relating the events of 1308 to the Thirteen Years' War and World War II.
Question: How many years does the first date on the Tym co za Polskość Gdańska monument span from the last date mentioned?

Answer:
number


