Input: Read this: Apple did not develop the iPod software entirely in-house, instead using PortalPlayer's reference platform based on two ARM cores. The platform had rudimentary software running on a commercial microkernel embedded operating system. PortalPlayer had previously been working on an IBM-branded MP3 player with Bluetooth headphones. Apple contracted another company, Pixo, to help design and implement the user interface under the direct supervision of Steve Jobs. As development progressed, Apple continued to refine the software's look and feel. Starting with the iPod Mini, the Chicago font was replaced with Espy Sans. Later iPods switched fonts again to Podium Sans—a font similar to Apple's corporate font, Myriad. iPods with color displays then adopted some Mac OS X themes like Aqua progress bars, and brushed metal meant to evoke a combination lock. In 2007, Apple modified the iPod interface again with the introduction of the sixth-generation iPod Classic and third-generation iPod Nano by changing the font to Helvetica and, in most cases, splitting the screen in half by displaying the menus on the left and album artwork, photos, or videos on the right (whichever was appropriate for the selected item).
Question: In what year was the 6th gen iPod Classic released?

Output: 2007


Input: Read this: Some people argue that elevators began as simple rope or chain hoists (see Traction elevators below). An elevator is essentially a platform that is either pulled or pushed up by a mechanical means. A modern-day elevator consists of a cab (also called a "cage", "carriage" or "car") mounted on a platform within an enclosed space called a shaft or sometimes a "hoistway". In the past, elevator drive mechanisms were powered by steam and water hydraulic pistons or by hand. In a "traction" elevator, cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight. Sometimes two elevators are built so that their cars always move synchronously in opposite directions, and are each other's counterweight.
Question: Elevator drive mechanisms have, in the past been, powered by what?

Output: steam and water hydraulic pistons or by hand


Input: Read this: Calvary as an English name for the place is derived from the Latin word for skull (calvaria), which is used in the Vulgate translation of "place of a skull", the explanation given in all four Gospels of the Aramaic word Gûlgaltâ which was the name of the place where Jesus was crucified. The text does not indicate why it was so designated, but several theories have been put forward. One is that as a place of public execution, Calvary may have been strewn with the skulls of abandoned victims (which would be contrary to Jewish burial traditions, but not Roman). Another is that Calvary is named after a nearby cemetery (which is consistent with both of the proposed modern sites). A third is that the name was derived from the physical contour, which would be more consistent with the singular use of the word, i.e., the place of "a skull". While often referred to as "Mount Calvary", it was more likely a small hill or rocky knoll.
Question: What language did most Romans know how to speak?

Output: unanswerable


Input: Read this: Raleigh (/ˈrɑːli/; RAH-lee) is the capital of the state of North Carolina as well as the seat of Wake County in the United States. It is the second most populous city in North Carolina, after Charlotte. Raleigh is known as the "City of Oaks" for its many oak trees, which line the streets in the heart of the city. The city covers a land area of 142.8 square miles (370 km2). The U.S. Census Bureau estimated the city's population to be 439,896 as of July 1, 2014. It is also one of the fastest-growing cities in the country. The city of Raleigh is named after Sir Walter Raleigh, who established the lost Roanoke Colony in present-day Dare County.
Question: What lost city is 142 miles large?

Output:
unanswerable