Problem: Hindu philosophy:

Hindu philosophy refers to a group of darsanas (philosophies, world views, teachings) that emerged in ancient India. The mainstream Hindu philosophy includes six systems (saddarsana) Samkhya, Yoga, Nyaya, Vaisheshika, Mimamsa and Vedanta. These are also called the Astika (orthodox) philosophical traditions and are those that accept the Vedas as authoritative, important source of knowledge.[note 1][note 2] Ancient and medieval India was also the source of philosophies that share philosophical concepts but rejected the Vedas, and these have been called nastika (heterodox or non-orthodox) Indian philosophies. Nastika Indian philosophies include Buddhism, Jainism, Carvaka, Ajivika, and others.

What are the main orthodox systems of Hindu philosophy called?
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A: Astika

Problem: Although this period had been productive, the bad weather had such a detrimental effect on Chopin's health that Sand determined to leave the island. To avoid further customs duties, Sand sold the piano to a local French couple, the Canuts.[n 8] The group traveled first to Barcelona, then to Marseilles, where they stayed for a few months while Chopin convalesced. In May 1839 they headed for the summer to Sand's estate at Nohant, where they spent most summers until 1846. In autumn they returned to Paris, where Chopin's apartment at 5 rue Tronchet was close to Sand's rented accommodation at the rue Pigalle. He frequently visited Sand in the evenings, but both retained some independence. In 1842 he and Sand moved to the Square d'Orleans, living in adjacent buildings.
Where did Chopin and Sand move to in 1842?
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Answer: Square d'Orleans

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On July 23, 1990, Leonid Kravchuk was elected to replace Ivashko as parliament chairman. On July 30, Parliament adopted a resolution on military service ordering Ukrainian soldiers "in regions of national conflict such as Armenia and Azerbaijan" to return to Ukrainian territory. On August 1, Parliament voted overwhelmingly to shut down the Chernobyl Nuclear Power Plant. On August 3, it adopted a law on the economic sovereignty of the Ukrainian republic. On August 19, the first Ukrainian Catholic liturgy in 44 years was celebrated at St. George Cathedral. On September 57, the International Symposium on the Great Famine of 19321933 was held in Kiev. On September 8, The first "Youth for Christ" rally since 1933 took place held in Lviv, with 40,000 participants. In September 2830, the Green Party of Ukraine held its founding congress. On September 30, nearly 100,000 people marched in Kiev to protest against the new union treaty proposed by Gorbachev.
How many people attended the Youth for Christ rally?
A: 40,000

Context and question: Beginning his second effort that fall, West would invest two million dollars and take over a year to craft his second album. West was significantly inspired by Roseland NYC Live, a 1998 live album by English trip hop group Portishead, produced with the New York Philharmonic Orchestra. Early in his career, the live album had inspired him to incorporate string arrangements into his hip-hop production. Though West had not been able to afford many live instruments around the time of his debut album, the money from his commercial success enabled him to hire a string orchestra for his second album Late Registration. West collaborated with American film score composer Jon Brion, who served as the album's co-executive producer for several tracks. Although Brion had no prior experience in creating hip-hop records, he and West found that they could productively work together after their first afternoon in the studio where they discovered that neither confined his musical knowledge and vision to one specific genre. Late Registration sold over 2.3 million units in the United States alone by the end of 2005 and was considered by industry observers as the only successful major album release of the fall season, which had been plagued by steadily declining CD sales.
What English music group was an inspiration for Kanye West on his second album?
Answer: Portishead

Question: Between the 199293 season and the 201213 season, Premier League clubs had won the UEFA Champions League four times (as well as supplying five of the runners-up), behind Spain's La Liga with six wins, and Italy's Serie A with five wins, and ahead of, among others, Germany's Bundesliga with three wins (see table here). The FIFA Club World Cup (or the FIFA Club World Championship, as it was originally called) has been won by Premier league clubs once (Manchester United in 2008), and they have also been runners-up twice, behind Brazil's Brasileirao with four wins, and Spain's La Liga and Italy's Serie A with two wins each (see table here).
Is there an answer to this question: Between 1992 and 2013, Spain's La Liga won the UEFA Champions League four times and Italy's Serie A won how many times?

Answer: unanswerable

Question: The logical format of an audio CD (officially Compact Disc Digital Audio or CD-DA) is described in a document produced in 1980 by the format's joint creators, Sony and Philips. The document is known colloquially as the Red Book CD-DA after the colour of its cover. The format is a two-channel 16-bit PCM encoding at a 44.1 kHz sampling rate per channel. Four-channel sound was to be an allowable option within the Red Book format, but has never been implemented. Monaural audio has no existing standard on a Red Book CD; thus, mono source material is usually presented as two identical channels in a standard Red Book stereo track (i.e., mirrored mono); an MP3 CD, however, can have audio file formats with mono sound.
Is there an answer to this question: Do CDs have a two or four channel format?

Answer:
two-channel