Input: Read this: Russian distinguishes between consonant phonemes with palatal secondary articulation and those without, the so-called soft and hard sounds. This distinction is found between pairs of almost all consonants and is one of the most distinguishing features of the language. Another important aspect is the reduction of unstressed vowels. Stress, which is unpredictable, is not normally indicated orthographically though an optional acute accent ( , znak udareniya) may be used to mark stress, such as to distinguish between homographic words, for example (zamok, meaning a lock) and (zamok, meaning a castle), or to indicate the proper pronunciation of uncommon words or names.
Question: What kind of words can acute accents distinguish?

Output: homographic words

Input: Read this: Several Muslim countries like Turkey and Iran exhibit high scientific publication. Some countries have tried to encourage scientific research. In Pakistan, establishment of the Higher Education Commission in 2002, resulted in a 5-fold increase in the number of PhDs and a 10-fold increase in the number of scientific research papers in 10 years with the total number of universities increasing from 115 in 2001 to over 400 in 2012.[citation needed] Saudi Arabia has established the King Abdullah University of Science and Technology. United Arab Emirates has invested in Zayed University, United Arab Emirates University, and Masdar Institute of Science and Technology[clarification needed]
Question: How many universities were in Pakistan in 2001?

Output: 115

Input: Read this: Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the leap to storing digital audio on an optical disc was easily made. Sony first publicly demonstrated an optical digital audio disc in September 1976. A year later, in September 1977, Sony showed the press a 30 cm disc that could play 60 minutes of digital audio (44,100 Hz sampling rate and 16-bit resolution) using MFM modulation. In September 1978, the company demonstrated an optical digital audio disc with a 150-minute playing time, 44,056 Hz sampling rate, 16-bit linear resolution, and cross-interleaved error correction codespecifications similar to those later settled upon for the standard Compact Disc format in 1980. Technical details of Sony's digital audio disc were presented during the 62nd AES Convention, held on 1316 March 1979, in Brussels. Sony's AES technical paper was published on 1 March 1979. A week later, on 8 March, Philips publicly demonstrated a prototype of an optical digital audio disc at a press conference called "Philips Introduce Compact Disc" in Eindhoven, Netherlands.
Question: When was the Betamax video recorder created?

Output: unanswerable

Input: Read this: The geographic features of Rajasthan are the Thar Desert and the Aravalli Range, which runs through the state from southwest to northeast, almost from one end to the other, for more than 850 kilometres (530 mi). Mount Abu lies at the southwestern end of the range, separated from the main ranges by the West Banas River, although a series of broken ridges continues into Haryana in the direction of Delhi where it can be seen as outcrops in the form of the Raisina Hill and the ridges farther north. About three-fifths of Rajasthan lies northwest of the Aravallis, leaving two-fifths on the east and south direction.
Question: What continues into the Thar Desert in the direction of Delhi?

Output:
unanswerable