This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

[EX Q]: Passage: A elevator of this kind uses a vacuum on top of the cab and a valve on the top of the "shaft" to move the cab upwards and closes the valve in order to keep the cab at the same level. a diaphragm or a piston is used as a "brake" if there's a sudden increase in pressure avove the cab. however, to go down, it opens the valve so that the air can pressurize the top of the "shaft", allowing the cab to go down by its own weight. this also means that in case of a power failure, the cab will automatically go down. the "shaft" is made of acrilic, is always round, due to the shape of the vacuum pump turbine. in order to keep the air inside of the cab, rubber seals are used. due to technical limitations, these elevators have a low capacity. they usually allow 1-3 passengers and up to 525 lbs. Question: For sudden surges in pressure above the cab, what is used as a "brake"?
[EX A]: a diaphragm or a piston

[EX Q]: Passage: According to the Instituto Nacional de Estadística, Geografía e Informática (INEGI), 95.6% of the population over the age of 15 could read and write Spanish, and 97.3% of children of ages 8–14 could read and write Spanish. An estimated 93.5% of the population ages 6–14 attend an institution of education. Estimated 12.8% of residents of the state have obtained a college degree. Average schooling is 8.5 years, which means that in general the average citizen over 15 years of age has gone as far as a second year in secondary education. Question: What percentage of children ages 8-14 could read and write Spanish?
[EX A]: 97.3%

[EX Q]: Passage: Nasser appointed himself the additional roles of prime minister and supreme commander of the armed forces on 19 June 1967. Angry at the military court's perceived leniency with air force officers charged with negligence during the 1967 war, workers and students launched protests calling for major political reforms in late February 1968. Nasser responded to the demonstrations, the most significant public challenge to his rule since workers' protests in March 1954, by removing most military figures from his cabinet and appointing eight civilians in place of several high-ranking members of the Arab Socialist Union (ASU). By 3 March, Nasser directed Egypt's intelligence apparatus to focus on external rather than domestic espionage, and declared the "fall of the mukhabarat state". Question: What type of people were ousted from Nasser's cabinet?
[EX A]:
Arab Socialist Union