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.

Ex 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: How did Wang Song die?

Ex Output:
span

Ex Input:
Passage: 1st Squadron, 10th Cavalry with the 4th Infantry Division participated in Exercise Reforger in 1977, 1978, 1981, 1985, 1987, and 1991. Exercise Reforger was an annual exercise conducted, during the Cold War, by NATO. The exercise was intended to ensure that NATO had the ability to quickly deploy forces to West Germany in the event of a conflict with the Warsaw Pact. 2nd Squadron, 10th Cavalry with the 7th Infantry Division participated in Exercise Reforger in 1984, 1986 and 1993. 3rd Battalion, 10th Cavalry was activated in the 1st Cavalry Division at Fort Hood, Texas, in 1977.
Question: What was the first year that Exercise Reforger took place?

Ex Output:
date

Ex Input:
Passage: Prince George of Greece was replaced by Alexandros Zaimis, a former Greek prime minister, for a five-year term beginning on 18 September 1906. From June 1906, an agreement between the former rebels of Theriso and the Cretan Assembly allowed for the creation of a constituent assembly led by Antonios Michelidakis. On 2 December, this body submitted a new constitution to Zaimis, who then swore allegiance to it. Order gradually returned to the island. A public administration was set up and laws passed for improving the health and education systems. In July 1907, Michelidakis was elected president of the Cretan Assembly, defeating Konstantinos Foumis by 34 to 31 votes. Impressed by the efforts the Cretan government had made, and having received assurances regarding the safety of the Muslim population, the European powers decided to send their troops home. On 26 August 1908, the first French contingents embarked at Chania, paving the way for a complete evacuation of the island.
Question: What year did Alexandros Zaimis term end?

Ex Output:
date