In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Example Input: Where was the Sugauli Treaty negotiated?, Context: The aggressive policies of Lord Wellesley and the Marquis of Hastings led to the Company gaining control of all India (except for the Punjab and Sindh), and some part of the then kingdom of Nepal under the Sugauli Treaty. The Indian Princes had become vassals of the Company. But the expense of wars leading to the total control of India strained the Company's finances. The Company was forced to petition Parliament for assistance. This was the background to the Charter Act of 1813 which, among other things:
Example Output: Sugauli

Example Input: Which category contains a 2 year old tree?, Context: To accurately map the Amazon's biomass and subsequent carbon related emissions, the classification of tree growth stages within different parts of the forest is crucial. In 2006 Tatiana Kuplich organized the trees of the Amazon into four categories: (1) mature forest, (2) regenerating forest [less than three years], (3) regenerating forest [between three and five years of regrowth], and (4) regenerating forest [eleven to eighteen years of continued development]. The researcher used a combination of Synthetic aperture radar (SAR) and Thematic Mapper (TM) to accurately place the different portions of the Amazon into one of the four classifications.
Example Output: 2

Example Input: What might suggest that people still wanted to abide by the laws during the bombings?, Context: Public demand caused the government in October 1940 to build new deep shelters:189–190 within the Underground to hold 80,000 people but were not completed until the period of heaviest bombing had passed. By the end of 1940 significant improvements had been made in the Underground and in many other large shelters. Authorities provided stoves and bathrooms and canteen trains provided food. Tickets were issued for bunks in large shelters to reduce the amount of time spent queuing. Committees quickly formed within shelters as informal governments, and organisations such as the British Red Cross and the Salvation Army worked to improve conditions. Entertainment included concerts, films, plays and books from local libraries.
Example Output:
Committees quickly formed within shelters as informal governments