Instructions: 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.
Input: Passage: Warbeck was initially treated well by Henry. As soon as he confessed to being an impostor, he was released from the Tower of London, and was given accommodation at Henry's court. He was even allowed to be present at royal banquets. He was, however, kept under guard and was not allowed to sleep with his wife, who was living under the protection of the queen. After 18 months at court, Warbeck tried to escape. He was quickly recaptured. He was then held in the Tower, initially in solitary confinement, and later alongside Edward Plantagenet, 17th Earl of Warwick; the two tried to escape in 1499. Captured once again, Warbeck was led from the Tower to Tyburn, London on 23 November 1499, where he read out a confession and was hanged. The Earl of Warwick was beheaded on Tower Hill on 28 November 1499. Warbeck was buried in Austin Friars, London. The presumed site of his unmarked grave still exists as the Dutch Church, Austin Friars.
Question: How many times did Warbeck try to escape?
Answer type: Number
Output:
2.