This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.

Example Input: Passage: In the Governorate of Estonia, Estonians called for freedom of the press and assembly, for universal suffrage, and for national autonomy. On 29 October, the Russian army opened fire in a meeting on a street market in Tallinn in which about 8 000-10 000 people participated, killing 94 and injuring over 200. The October Manifesto was supported in Estonia and the Estonian flag was displayed publicly for the first time. Jaan Tonisson used the new political freedoms to widen the rights of Estonians by establishing the first Estonian political party - National Progress Party. Another, more radical political organisation, the Estonian Social Democratic Workers' Union was founded as well. The moderate supporters of Tonisson and the more radical supporters of Jaan Teemant could not agree about how to continue with the revolution, and only agreed that both wanted to limit the rights of Baltic Germans and to end Russification. The radical views were publicly welcomed and in December 1905, martial law was declared in Tallinn. A total of 160 manors were looted, resulting in ca. 400 workers and peasants being killed by the army. Estonian gains from the revolution were minimal, but the tense stability that prevailed between 1905 and 1917 allowed Estonians to advance the aspiration of national statehood.
Question: How many years did the tense stability last?
Answer type: Number
Example Output: 12.

Example Input: Passage: After a huge win on the road, the Steelers returned home for a game against the Buccaneers. The Bucs scored first when Mike Glennon found Mike Evans on a 7-yard TD pass for a 7-0 lead. They increased their lead when Patrick Murray kicked a 50-yard field goal for a 10-lead. The Steelers finally got on the board when Shaun Suisham nailed a 25-yard field goal to come within a TD, 10-3 followed by Ben Roethlisberger hooking up with Antonio Brown on an 11-yard TD pass to tie the game up at 10-10. In the 2nd quarter, Roethlisberger found Brown again this time on a 27-yard TD pass to take the lead 17-10 at halftime. After the break, Doug Martin ran for a TD from 3 yards out to tie the game back up, 17-17. The Steelers pulled away as Roethlisberger found Heath Miller on a 5-yard TD pass for a 24-17 lead. In the 4th quarter, the Bucs pulled within 4 when Murray kicked a 27-yard field goal for a 24-20 game. Driving down the field, the Bucs were able to complete the comeback attempt as Glennon found Vincent Jackson on a 5-yard TD pass for a final score of 27-24.
Question: How many points were the Steelers leading at halftime?
Answer type: Number
Example Output: 7.

Example Input: Passage: The Anglo-Spanish War was a conflict between the English Protectorate under Oliver Cromwell and Spain, between 1654 and 1660. It was caused by commercial rivalry. Each side attacked the other's commercial and colonial interests in various ways such as privateering and naval expeditions. In 1655, an English amphibious expedition invaded Spanish territory in the Caribbean. The major land actions took place in the Spanish Netherlands. In 1657, England formed an alliance with France, merging the Anglo-Spanish war with the larger Franco-Spanish War. The war officially ended with two peace treaties which were signed at Madrid in 1667 and 1670.
Question: How many years did the Anglo-Spanish War last?
Answer type: Number
Example Output:
6.