Input: Read this: They do not work in industries associated with the military, do not serve in the armed services, and refuse national military service, which in some countries may result in their arrest and imprisonment. They do not salute or pledge allegiance to flags or sing national anthems or patriotic songs. Jehovah's Witnesses see themselves as a worldwide brotherhood that transcends national boundaries and ethnic loyalties. Sociologist Ronald Lawson has suggested the religion's intellectual and organizational isolation, coupled with the intense indoctrination of adherents, rigid internal discipline and considerable persecution, has contributed to the consistency of its sense of urgency in its apocalyptic message.
Question: What may a Jehovah Witnesses' refusal to serve in the natural military service result in, in some countries?

Output: their arrest and imprisonment

Input: Read this: Whites (mainly of Afrikaner, German, British and Portuguese origin) make up between 4.0 and 7.0% of the population. Although their percentage of population is decreasing due to emigration and lower birth rates they still form the second-largest population of European ancestry, both in terms of percentage and actual numbers, in Sub-Saharan Africa (after South Africa). The majority of Namibian whites and nearly all those who are mixed race speak Afrikaans and share similar origins, culture, and religion as the white and coloured populations of South Africa. A large minority of whites (around 30,000) trace their family origins back to the German settlers who colonized Namibia prior to the British confiscation of German lands after World War One, and they maintain German cultural and educational institutions. Nearly all Portuguese settlers came to the country from the former Portuguese colony of Angola. The 1960 census reported 526,004 persons in what was then South-West Africa, including 73,464 whites (14%).
Question: Where do a large minority of whites trace their Namibian roots to?

Output: German settlers

Input: Read this: The development of skyscrapers over 300 feet (91 m) in San Diego is attributed to the construction of the El Cortez Hotel in 1927, the tallest building in the city from 1927 to 1963. As time went on multiple buildings claimed the title of San Diego's tallest skyscraper, including the Union Bank of California Building and Symphony Towers. Currently the tallest building in San Diego is One America Plaza, standing 500 feet (150 m) tall, which was completed in 1991. The downtown skyline contains no super-talls, as a regulation put in place by the Federal Aviation Administration in the 1970s set a 500 feet (152 m) limit on the height of buildings due to the proximity of San Diego International Airport. An iconic description of the skyline includes its skyscrapers being compared to the tools of a toolbox.
Question: How tall is One America Plaza?

Output: 500 feet

Input: Read this: Time has long been a major subject of study in religion, philosophy, and science, but defining it in a manner applicable to all fields without circularity has consistently eluded scholars. Nevertheless, diverse fields such as business, industry, sports, the sciences, and the performing arts all incorporate some notion of time into their respective measuring systems. Some simple definitions of time include "time is what clocks measure", which is a problematically vague and self-referential definition that utilizes the device used to measure the subject as the definition of the subject, and "time is what keeps everything from happening at once", which is without substantive meaning in the absence of the definition of simultaneity in the context of the limitations of human sensation, observation of events, and the perception of such events.
Question: What does science use to test a hypothesis?

Output:
unanswerable