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.

Input: Consider Input: Passage: The country's economic transformation was far from complete. Political and financial crises in 1997, shattered the Czech Republic's image as one of the most stable and prosperous of post-Communist states. Delays in enterprise restructuring and failure to develop a well-functioning capital market played major roles in Czech economic troubles, which culminated in a currency crisis in May. The formerly pegged currency was forced into a floating system as investors sold their Korunas faster than the government could buy them. This followed a worldwide trend to divest from developing countries that year. Investors also worried the republic's economic transformation was far from complete. Another complicating factor was the current account deficit, which reached nearly 8% of GDP. In response to the crisis, two austerity packages were introduced later in the spring , which cut government spending by 2.5% of GDP. Growth dropped to 0.3% in 1997, −2.3% in 1998, and −0.5% in 1999. The government established a restructuring agency in 1999 and launched a revitalization program - to spur the sale of firms to foreign companies. Key priorities included accelerating legislative convergence with EU norms, restructuring enterprises, and privatising banks and utilities. The economy, fueled by increased export growth and investment, was expected to recover by 2000.
Question: How many years after the government established a restructuring agency was export growth and investment expect to recover?

Output: number


Input: Consider Input: Passage: Persia attempted to ratify the Treaty of Constantinople , by demanding that the Ja'fari, also known as the Imamiyyah was to be accepted as a fifth legal sect of Islam. In 1743, Nader Shah declared war on the Ottoman Empire. He demanded the surrender of Baghdad. The Persians had captured Baghdad in 1623 and Mosul in 1624, but the Ottomans had recaptured Mosul in 1625 and Bagdad in 1638. The Treaty of Zuhab in 1639 between the Ottoman Empire and the Safavid Empire had resulted in peace for 85 years. After the fall of the Safavid Dynasty, Russia and the Ottoman Empire agreed to divide the northwest and the Caspian region of Persia, but with the advent of Nader Shah, the Russians and the Turks withdrew from the region. Nader Shah waged war against the Ottomans from 1730 to 1736 but it ended with a stalemate. Nader Shah afterwards turned east and declared war on the Moghul Empire and invaded India, in order to refund his wars against the Ottomans.
Question: How many years did Nader Shah wage war against the Ottomans?

Output: number


Input: Consider Input: Passage: The Second Goryeo-Khitan War was an 11th-century conflict between the kingdom of Goryeo and the Liao dynasty  near what is now the border between China and North Korea. It was the second of the Goryeo-Khitan Wars, with the First Goryeo-Khitan War occurring in 993, the second in 1010, and the third in 1018. When King Seongjong died in 997, Liao invested his successor Wang Song as king of Goryeo . In 1009, he was assassinated by the forces of the general Gang Jo. Using it as a pretext, the Liao attacked Goryeo in the next year. They lost the first battle but won the second one, and Gang Jo was captured and killed. The Liao occupied and burnt the Goryeo capital Kaesong. The Khitan withdrew after Goryeo reaffirmed its tributary relationship with the Khitan.
Question: When was the last Goryeo-Khitan War?


Output: date