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.

Let me give you an example: Passage: The outbreak of the Seven Years' War in Europe in 1756 resulted in renewed conflict between French and British forces in India. The Third Carnatic War spread beyond southern India and into Bengal where British forces captured the French settlement of Chandernagore in 1757. However, the war was decided in the south, where the British successfully defended Madras, and Sir Eyre Coote decisively defeated the French, commanded by Comte de Lally at the Battle of Wandiwash in 1760. After Wandiwash, the French capital of Pondicherry fell to the British in 1761. The war concluded with the signing of the Treaty of Paris in 1763, which returned Chandernagore and Pondichery to France, and allowed the French to have "factories" in India but forbade French traders from administering them. The French agreed to support British client governments, thus ending French ambitions of an Indian empire and making the British the dominant foreign power in India.
Question: Which french settlement did the British capture first, Chandernagore or Pondicherry?
The answer to this example can be: span
Here is why: The answer "Chandernagore" is a word from the passage. So, the answer type is "span".

OK. solve this:
Passage: Anaukpetlun would not spend his scarce resources on subjugating Siam. His strategy was to pick off Siam's peripheral regions rather than launch a full-scale invasion. On 30 November 1613, he sent a small army of 4,000 to drive out the Siamese from upper Tenasserim coast. On 26 December 1613, the army defeated the Siamese at Tavoy. The Burmese followed down to Tenasserim port itself. But the Burmese were driven back with heavy losses by the wealthy port's Portuguese broadsides in March 1614. The Siamese tried to retake Tavoy but failed. Anaukpetlun then switched theatres to Lan Na, which like Martaban before was only a nominal vassal of Siam. His armies of 17,000 invaded Lan Na on 30 April 1614 from Martaban in the south and Mone in the north. Lan Na's ruler, Thado Kyaw, desperately sought help. Help came from Lan Xang, not his overlord Siam. Despite the logistical troubles and the rainy season conditions, the Burmese armies finally achieved encirclement of Lan Na and Lan Xang forces in the Chiang Mai and Lanphun pocket in August 1614. After nearly five months, on 22 December 1614, the city surrendered. Siam would not make any attempts to recover Lan Na until 1663.
Question: How many months after the invasion of Lan Na did the city surrender?
Answer:
number