Input: Read this: GE (General Electric) Energy's renewable energy business has expanded greatly, to keep up with growing U.S. and global demand for clean energy. Since entering the renewable energy industry in 2002, GE has invested more than $850 million in renewable energy commercialization. In August 2008 it acquired Kelman Ltd, a Northern Ireland company specializing in advanced monitoring and diagnostics technologies for transformers used in renewable energy generation, and announced an expansion of its business in Northern Ireland in May 2010. In 2009, GE's renewable energy initiatives, which include solar power, wind power and GE Jenbacher gas engines using renewable and non-renewable methane-based gases, employ more than 4,900 people globally and have created more than 10,000 supporting jobs.
Question: How much money has GE invested in renewable energy commercialization?

Output: more than $850 million


Input: Read this: During the mid-2000s, the city witnessed its largest real estate boom since the Florida land boom of the 1920s. During this period, the city had well over a hundred approved high-rise construction projects in which 50 were actually built. In 2007, however, the housing market crashed causing lots of foreclosures on houses. This rapid high-rise construction, has led to fast population growth in the city's inner neighborhoods, primarily in Downtown, Brickell and Edgewater, with these neighborhoods becoming the fastest-growing areas in the city. The Miami area ranks 8th in the nation in foreclosures. In 2011, Forbes magazine named Miami the second-most miserable city in the United States due to its high foreclosure rate and past decade of corruption among public officials. In 2012, Forbes magazine named Miami the most miserable city in the United States because of a crippling housing crisis that has cost multitudes of residents their homes and jobs. The metro area has one of the highest violent crime rates in the country and workers face lengthy daily commutes.
Question: When did the Florida land bust occur?

Output: unanswerable


Input: Read this: As advances and specialization have made new scientific research inaccessible to most audiences, the "literary" nature of science writing has become less pronounced over the last two centuries. Now, science appears mostly in journals. Scientific works of Aristotle, Copernicus, and Newton still exhibit great value, but since the science in them has largely become outdated, they no longer serve for scientific instruction. Yet, they remain too technical to sit well in most programmes of literary study. Outside of "history of science" programmes, students rarely read such works.
Question: The literary nature of science writing has become more pronounced during what time period?

Output: unanswerable


Input: Read this: In classical physics, an inertial reference frame is one in which an object that experiences no forces does not accelerate. In general relativity, an inertial frame of reference is one that is following a geodesic of space-time. An object that moves against a geodesic experiences a force. An object in free fall does not experience a force, because it is following a geodesic. An object standing on the earth, however, will experience a force, as it is being held against the geodesic by the surface of the planet. In light of this, the bucket of water rotating in empty space will experience a force because it rotates with respect to the geodesic. The water will become concave, not because it is rotating with respect to the distant stars, but because it is rotating with respect to the geodesic.
Question: In classical physics, an inertial reference frame is one in which an object without force does what?

Output:
does not accelerate