You will be given a definition of a task first, then some input of the task.
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.

Question: When was the school at which Brillouin studied physics founded? Passage 1:From 1908 to 1912, Brillouin studied physics at the École Normale Supérieure, in Paris. From 1911 he studied under Jean Perrin until he left for the Ludwig Maximilian University of Munich (LMU), in 1912. At LMU, he studied theoretical physics with Arnold Sommerfeld. Just a few months before Brillouin's arrival at LMU, Max von Laue had conducted his experiment showing X-ray diffraction in a crystal lattice. In 1913, he went back to France to study at the University of Paris and it was in this year that Niels Bohr submitted his first paper on the Bohr model of the hydrogen atom. From 1914 until 1919, during World War I, he served in the military, developing the valve amplifier with G. A. Beauvais. At the conclusion of the war, he returned to the University of Paris to continue his studies with Paul Langevin, and was awarded his Docteur ès science in 1920. Brillouin's thesis jury was composed of Langevin, Marie Curie, and Jean Perrin and his thesis topic was on the quantum theory of solids. In his thesis, he proposed an equation of state based on the atomic vibrations (phonons) that propagate through it. He also studied the propagation of monochromatic light waves and their interaction with acoustic waves, i.e., scattering of light with a frequency change, which became known as Brillouin scattering.
 Passage 2:Indian Supercomputer design experience started first with C-DOT's CHIPPS - C-DOT High Performance Parallel Processing System. It was designed to work with a maximum of 192 nodes and later the Technology, Architecture, Design, and the Product's Hardware, Software, and Firmware were transferred to a similarly formed autonomous organization in Pune which was then called 'C-DACT' in the first place to refer to 'Centre for Development of Advanced Computing Technology' as it was intended originally to sound synonymous with C-DOT, but it was later renamed to C-DAC with 5 characters similar to that of C-DOT. CHIPPS was the base platform of the Indian Supercomputer Revolution initiated in 1988 and pursued more vigorously during the start of the 1991. Then, 'CHIPPS' which used Inmos T800 Transputer Architecture and Design in a massively parallel processing structure was augmented and was renamed to call it 'PARAM' by the policy makers of C-DAC though the original architects and the original designers of C-DOT opposed to the renaming process because 'PARAM' refers to GOD in Indian Root Language TAMIL and its ancient versions including Sanskrit. Indian Supercomputer 'PARAM 8000' named by the Centre for Development of Advanced Computing (C-DAC), headed by Dr. Vijay Pandurang Bhatkar, was launched on July 1, 1991. It was released in 1991 by C-DAC and was replicated and installed at ICAD Moscow in 1991 under Russian collaboration.
 Passage 3:When Squires became a professional singer she performed with big bands such as Ted Heath, Geraldo and Cyril Stapleton. She also sang with the smaller jazz bands of Max Harris, Kenny Baker and appeared in the BBC Festival of Jazz at the Royal Albert Hall with the Alan Clare band. She moved from Salisbury to London in 1948 at 20 years of age. In the 1950s and 60s she became a regular on the BBC Light Programme (now BBC Radio 2) on programmes like Melody Time and Workers' Playtime. Squires worked in the United States with Danny Kaye and Sammy Davis Jr., as well as appearing on the Johnny Carson Show. In 1994 Squires was part of the entertainment for Prince Edward's 30th birthday celebrations. During the 2012 Royal Diamond Jubilee year Squires undertook two countrywide tours to celebrate her own diamond jubilee in show business including two appearances at the Royal Festival Hall.

Output:
1