Input: Read this: Boston (pronounced i/bstn/) is the capital and largest city of the Commonwealth of Massachusetts in the United States. Boston also served as the historic county seat of Suffolk County until Massachusetts disbanded county government in 1999. The city proper covers 48 square miles (124 km2) with an estimated population of 655,884 in 2014, making it the largest city in New England and the 24th largest city in the United States. The city is the economic and cultural anchor of a substantially larger metropolitan area called Greater Boston, home to 4.7 million people and the tenth-largest metropolitan statistical area in the country. Greater Boston as a commuting region is home to 8.1 million people, making it the sixth-largest combined statistical area in the United States.
Question: What is the estimated population of Greater Boston?

Output: 4.7 million people

QUES: At its press conference at the 2007 Tokyo Game Show, Sony announced DualShock 3 (trademarked DUALSHOCK 3), a PlayStation 3 controller with the same function and design as Sixaxis, but with vibration capability included. Hands-on accounts describe the controller as being noticeably heavier than the standard Sixaxis controller and capable of vibration forces comparable to DualShock 2. It was released in Japan on November 11, 2007; in North America on April 5, 2008; in Australia on April 24, 2008; in New Zealand on May 9, 2008; in mainland Europe on July 2, 2008, and in the United Kingdom and Ireland on July 4, 2008.

On what date was the DualShock three unreleased in Australia?
What is the answer?
ANS: unanswerable

QUES: In the United States, two of the wealthiest nonprofit organizations are the Bill and Melinda Gates Foundation, which has an endowment of US$38 billion, and the Howard Hughes Medical Institute originally funded by Hughes Aircraft prior to divestiture, which has an endowment of approximately $14.8 billion. Outside the United States, another large NPO is the British Wellcome Trust, which is a "charity" by British usage. See: List of wealthiest foundations. Note that this assessment excludes universities, at least a few of which have assets in the tens of billions of dollars. For example; List of U.S. colleges and universities by endowment.
What group was funded by the British Wellcome Trust before divestiture?

ANS: unanswerable

A servo system differs from some stepper motor applications in that the position feedback is continuous while the motor is running; a stepper system relies on the motor not to "miss steps" for short term accuracy, although a stepper system may include a "home" switch or other element to provide long-term stability of control. For instance, when a typical dot matrix computer printer starts up, its controller makes the print head stepper motor drive to its left-hand limit, where a position sensor defines home position and stops stepping. As long as power is on, a bidirectional counter in the printer's microprocessor keeps track of print-head position.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What makes a printer home switch work?
Ah, so.. position sensor

Question: There were guilds of dyers who specialized in red in Venice and other large Europeans cities. The Rubia plant was used to make the most common dye; it produced an orange-red or brick red color used to dye the clothes of merchants and artisans. For the wealthy, the dye used was Kermes, made from a tiny scale insect which fed on the branches and leaves of the oak tree. For those with even more money there was Polish Cochineal; also known as Kermes vermilio or "Blood of Saint John", which was made from a related insect, the Margodes polonicus. It made a more vivid red than ordinary Kermes. The finest and most expensive variety of red made from insects was the "Kermes" of Armenia (Armenian cochineal, also known as Persian kirmiz), made by collecting and crushing Porphyophora hamelii, an insect which lived on the roots and stems of certain grasses. The pigment and dye merchants of Venice imported and sold all of these products and also manufactured their own color, called Venetian red, which was considered the most expensive and finest red in Europe. Its secret ingredient was arsenic, which brightened the color.
Try to answer this question if possible: What insect was found in Persia?
Answer: unanswerable

Question: The Sumerians were a non-Semitic caucasoid people, and spoke a language isolate; a number of linguists believed they could detect a substrate language beneath Sumerian, because names of some of Sumer's major cities are not Sumerian, revealing influences of earlier inhabitants. However, the archaeological record shows clear uninterrupted cultural continuity from the time of the early Ubaid period (5300 4700 BC C-14) settlements in southern Mesopotamia. The Sumerian people who settled here farmed the lands in this region that were made fertile by silt deposited by the Tigris and the Euphrates rivers.
Try to answer this question if possible: Where did people fish in the Ubaid period?
Answer:
unanswerable