This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Q: Passage: In the latter part of the second revolution, Thomas Alva Edison developed many devices that greatly influenced life around the world and is often credited with the creation of the first industrial research laboratory. In 1882, Edison switched on the world's first large-scale electrical supply network that provided 110 volts direct current to fifty-nine customers in lower Manhattan. Also toward the end of the second industrial revolution, Nikola Tesla made many contributions in the field of electricity and magnetism in the late 19th and early 20th centuries. Question: How many customers were supplied by Thomas Edison's electrical supply network?

A: fifty-nine
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Q: Passage: Prussia emerged from the war as a great power whose importance could no longer be challenged. Frederick the Great’s personal reputation was enormously enhanced, as his debt to fortune (Russia’s volte-face after Elizabeth’s death) and to the British subsidy were soon forgotten while the memory of his energy and his military genius was strenuously kept alive. Russia, on the other hand, made one great invisible gain from the war: the elimination of French influence in Poland. The First Partition of Poland (1772) was to be a Russo-Prussian transaction, with Austria only reluctantly involved and with France simply ignored. Question: What gain did Russia make from the results of the war?

A: Russia, on the other hand, made one great invisible gain from the war: the elimination of French influence in Poland
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Q: Passage: Days of working time in Israel are Sunday through Thursday (for a five-day workweek), or Friday (for a six-day workweek). In observance of Shabbat, in places where Friday is a work day and the majority of population is Jewish, Friday is a "short day", usually lasting till 14:00 in the winter, or 16:00 in the summer. Several proposals have been raised to adjust the work week with the majority of the world, and make Sunday a non-working day, while extending working time of other days or replacing Friday with Sunday as a work day. Question: Friday is considered what?

A:
short day
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