Problem: Please answer a question about the following article about Pitch (music):
Temporal theories offer an alternative that appeals to the temporal structure of action potentials, mostly the phase-locking and mode-locking of action potentials to frequencies in a stimulus. The precise way this temporal structure helps code for pitch at higher levels is still debated, but the processing seems to be based on an autocorrelation of action potentials in the auditory nerve. However, it has long been noted that a neural mechanism that may accomplish a delaya necessary operation of a true autocorrelationhas not been found. At least one model shows that a temporal delay is unnecessary to produce an autocorrelation model of pitch perception, appealing to phase shifts between cochlear filters; however, earlier work has shown that certain sounds with a prominent peak in their autocorrelation function do not elicit a corresponding pitch percept, and that certain sounds without a peak in their autocorrelation function nevertheless elicit a pitch. To be a more complete model, autocorrelation must therefore apply to signals that represent the output of the cochlea, as via auditory-nerve interspike-interval histograms. Some theories of pitch perception hold that pitch has inherent octave ambiguities, and therefore is best decomposed into a pitch chroma, a periodic value around the octave, like the note names in western musicand a pitch height, which may be ambiguous, that indicates the octave the pitch is in.
Is a temporal delay necessary to produce an autocorrelation model of pitch perception?
A: unnecessary
Problem: Please answer a question about the following article about 2008 Summer Olympics torch relay:
Internationally, the torch and its accompanying party traveled in a chartered Air China Airbus A330 (registered B-6075), painted in the red and yellow colors of the Olympic Games. Air China was chosen by the Beijing Committees of the Olympic Game as the designated Olympic torch carrier in March 2008 for its long-standing participation in the Olympic cause. The plane traveled a total of 137,000 km (85,000 mi) for a duration of 130 days through 21 countries and regions.
How many days did the plane travel?
A: 130 days
Problem: Please answer a question about the following article about Middle Ages:
In central and northern Italy and in Flanders, the rise of towns that were to a degree self-governing stimulated economic growth and created an environment for new types of trade associations. Commercial cities on the shores of the Baltic entered into agreements known as the Hanseatic League, and the Italian Maritime republics such as Venice, Genoa, and Pisa expanded their trade throughout the Mediterranean.[V] Great trading fairs were established and flourished in northern France during the period, allowing Italian and German merchants to trade with each other as well as local merchants. In the late 13th century new land and sea routes to the Far East were pioneered, famously described in The Travels of Marco Polo written by one of the traders, Marco Polo (d. 1324). Besides new trading opportunities, agricultural and technological improvements enabled an increase in crop yields, which in turn allowed the trade networks to expand. Rising trade brought new methods of dealing with money, and gold coinage was again minted in Europe, first in Italy and later in France and other countries. New forms of commercial contracts emerged, allowing risk to be shared among merchants. Accounting methods improved, partly through the use of double-entry bookkeeping; letters of credit also appeared, allowing easy transmission of money.
Along with Venice and Pisa, what was a notable Italian maritime republic?
A: Genoa
Problem: Please answer a question about the following article about Serbo-Croatian:
However, most intellectuals and writers from Dalmatia who used the Stokavian dialect and practiced the Catholic faith saw themselves as part of a Croatian nation as far back as the mid-16th to 17th centuries, some 300 years before Serbo-Croatian ideology appeared. Their loyalty was first and foremost to Catholic Christendom, but when they professed an ethnic identity, they referred to themselves as "Slovin" and "Illyrian" (a sort of forerunner of Catholic baroque pan-Slavism) and Croat these 30-odd writers over the span of c. 350 years always saw themselves as Croats first and never as part of a Serbian nation. It should also be noted that, in the pre-national era, Catholic religious orientation did not necessarily equate with Croat ethnic identity in Dalmatia. A Croatian follower of Vuk Karadzic, Ivan Broz, noted that for a Dalmatian to identify oneself as a Serb was seen as foreign as identifying oneself as Macedonian or Greek. Vatroslav Jagic pointed out in 1864:
To which group did the people of the Catholic faith refer to themselves primarily?
A:
Catholic Christendom