Given the following passage "Boston has been called the "Athens of America" for its literary culture, earning a reputation as "the intellectual capital of the United States." In the nineteenth century, Ralph Waldo Emerson, Henry David Thoreau, Nathaniel Hawthorne, Margaret Fuller, James Russell Lowell, and Henry Wadsworth Longfellow wrote in Boston. Some consider the Old Corner Bookstore, where these writers met and where The Atlantic Monthly was first published, to be "cradle of American literature. In 1852, the Boston Public Library was founded as the first free library in the United States. Boston's literary culture continues today thanks to the city's many universities and the Boston Book Festival.", answer the following question. Note that the answer is present within the text. Question: what is the second city mentioned?
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Answer: Athens

Given the following passage "Vacuum is space void of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. Physicists often discuss ideal test results that would occur in a perfect vacuum, which they sometimes simply call "vacuum" or free space, and use the term partial vacuum to refer to an actual imperfect vacuum as one might have in a laboratory or in space. In engineering and applied physics on the other hand, vacuum refers to any space in which the pressure is lower than atmospheric pressure. The Latin term in vacuo is used to describe an object as being in what would otherwise be a vacuum.", answer the following question. Note that the answer is present within the text. Question: How is a vacuum different from air?
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Answer: void of matter

Given the following passage "In lossy audio compression, methods of psychoacoustics are used to remove non-audible (or less audible) components of the audio signal. Compression of human speech is often performed with even more specialized techniques; speech coding, or voice coding, is sometimes distinguished as a separate discipline from audio compression. Different audio and speech compression standards are listed under audio coding formats. Voice compression is used in internet telephony, for example, audio compression is used for CD ripping and is decoded by the audio players.", answer the following question. Note that the answer is present within the text. Question: What is voice coding use for
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Answer:
internet telephony