Q: 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.
Passage: Located in a remote, hard-to-reach corner east of the Pegu Yoma range, Toungoo had always been a troublesome province. It raised repeated rebellions throughout the 14th and 15th centuries against its overlords at Pinya and Ava, usually with Hanthawaddy Pegu's help. In 1494, Toungoo raided Pegu's territory without its overlord Ava's permission, and barely survived a strong counterattack by Pegu in 1495-1496. Mingyi Nyo, viceroy of Toungoo, would not make war against the larger neighbour for the remainder of his life. Mingyi Nyo declared independence from Ava in 1510, and largely stayed out of the fighting raging between Ava and the Confederation of Shan States. When Ava fell to the combined forces of the Confederation and Prome in 1527, many people fled to Toungoo, the only region in Upper Burma at peace.
Question: For how many centuries did Toungoo repeatedly raise rebellions?
Answer type: Number
A:
2.