Definition: In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.
Input: Question: Who first established the organization whose headquarters are at 85 Stone Nullah Lane? Passage 1:From its southern end, Stone Nullah Lane begins at its junction with Lung On Street. This is where the Wan Chai Pak Tai Temple is located. Made from grey-coloured brick and granite, it was constructed in 1863, although the statue of Pak Tai inside dates even further back to 1604. The temple is the oldest in the district, and reportedly the largest on Hong Kong Island. The next landmark on the route is the headquarters of St. James' Settlement. Situated at 85 Stone Nullah Lane, the charitable organisation was established here in 1949 with the goal of helping impoverished children living in squats around the neighbourhood, and now extends its services to needy people across the city. The current structure towers 12-storeys above the lane. Before the street turns onto Queen's Road East and ends, it passes the Blue House, a Grade I historic building. The buildingwhose Spanish balconies made from cast-iron have elicited comparisons to ones in New Orleanswas built in the 1920s and was originally utilised as a health centre for the community, a school teaching kung fu from the 1950s to 1960s, and now houses a museum.
Passage 2:Emil Kirdorf was born at Mettmann, Rhine Province. His father was a wealthy owner of a weaving mill. He had a brother named Adolf who would be his business partner during his adult life. Kirdorf volunteered a year in 1864 in Hamburg to work in an export enterprise. A year later, he worked in a textile company in Krefeld. The family's mill went bankrupt, mainly because of the management's refusal to introduce mechanical looms. Kirdorf therefore changed to mining industry in which he worked as an accountant. Following the Franco-Prussian War, he became director of Zeche Holland in 1871. Two years later, the entrepreneur Friedrich Grillo offered him the position of commercial director in the Gelsenkirchener Bergwerks-AG (GBAG) company. He became general manager of GBAG in 1893. He steered the company through the Long Depression of the 1870s, and held this position until 1926.
Passage 3:The First Indochina War had raged, as guerrilla warfare, since 19 December 1946. From 1949, it evolved into conventional warfare, due largely to aid from the communists of the People's Republic of China ("PRC") to the north. Subsequently, the French strategy of occupying small, poorly defended outposts throughout Indochina, particularly along the Vietnamese-Chinese border, started failing. Thanks to the terrain, popular support for August Revolution and support for decolonization from bordering China and the U.S.S.R., the Viet Minh had succeeded in turning a "clandestine guerrilla movement into a powerful conventional army", following asymmetric warfare theory laid by Mao Tse Tung, something which previously had never been encountered by the western colonial powers. In October 1952, fighting around the Red River Delta spread into the Thai Highlands, resulting in the Battle of Na San, at which the Viet Minh were defeated. The French used the lessons learned at Na San strong ground bases, versatile air support, and a model based on the British Burma Campaign as the basis for their new strategy. The Viet Minh, however, remained unbeatable in the highland regions of Vietnam, and the French "could not offset the fundamental disadvantages of a roadbound army facing a hill and forest army in a country which had few roads but a great many hills and forests".

Output:
1