In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
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Question: what type of string is mentioned third to last?, Context: Samuel Adelstein described the Lombardi mandolin in 1893 as wider and shorter than the Neapolitan mandolin, with a shallower back and a shorter and wider neck, with six single strings to the regular mandolin's set of 4. The Lombardi was tuned C, D, A, E, B, G. The strings were fastened to the bridge like a guitar's. There were 20 frets, covering three octaves, with an additional 5 notes. When Adelstein wrote, there were no nylon strings, and the gut and single strings "do not vibrate so clearly and sweetly as the double steel string of the Neapolitan."

Answer: gut


Question: What criteria is used to decide when Armenia was in its heyday?, Context: The first geographical entity that was called Armenia by neighboring peoples (such as by Hecataeus of Miletus and on the Achaemenid Behistun Inscription) was established in the late 6th century BC under the Orontid dynasty within the Achaemenid Persian Empire as part of the latters' territories, and which later became a kingdom. At its zenith (95–65 BC), the state extended from the Caucasus all the way to what is now central Turkey, Lebanon, and northern Iran. The imperial reign of Tigranes the Great is thus the span of time during which Armenia itself conquered areas populated by other peoples.

Answer: the span of time during which Armenia itself conquered areas populated by other peoples


Question: What is the station from which the trains that can go to Scotland leave?, Context: Train operator Virgin Trains East Coast provides a half-hourly frequency of trains to London King's Cross, with a journey time of about three hours, these services call at Durham, Darlington, York, Doncaster, Newark North Gate and Peterborough and north to Scotland with all trains calling at Edinburgh and a small number of trains extended to Glasgow, Aberdeen and Inverness. CrossCountry trains serve destinations in Yorkshire, the Midlands and the South West. First TransPennine Express operates services to Manchester and Liverpool. Northern Rail provides local and regional services.

Answer:
London King's Cross