Problem: Raleigh, North Carolina:

The National Hockey League's Carolina Hurricanes franchise moved to Raleigh in 1997 from Hartford, Connecticut (where it was known as the Hartford Whalers). The team played its first two seasons more than 60 miles away at Greensboro Coliseum while its home arena, Raleigh Entertainment and Sports Arena (later RBC Center and now PNC Arena), was under construction. The Hurricanes are the only major league (NFL, NHL, NBA, MLB) professional sports team in North Carolina to have won a championship, winning the Stanley Cup in 2006, over the Edmonton Oilers. The city played host to the 2011 NHL All-Star Game.

What is the only professional sports team in North Carolina?
---
A: National Hockey League's Carolina Hurricanes


Problem: Hydrogen forms a vast array of compounds with carbon called the hydrocarbons, and an even vaster array with heteroatoms that, because of their general association with living things, are called organic compounds. The study of their properties is known as organic chemistry and their study in the context of living organisms is known as biochemistry. By some definitions, "organic" compounds are only required to contain carbon. However, most of them also contain hydrogen, and because it is the carbon-hydrogen bond which gives this class of compounds most of its particular chemical characteristics, carbon-hydrogen bonds are required in some definitions of the word "organic" in chemistry. Millions of hydrocarbons are known, and they are usually formed by complicated synthetic pathways, which seldom involve elementary hydrogen.
What is the form of hydrogen and carbon called?
---
Answer: hydrocarbons


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Domestic dogs have been selectively bred for millennia for various behaviors, sensory capabilities, and physical attributes. Modern dog breeds show more variation in size, appearance, and behavior than any other domestic animal. Dogs are predators and scavengers, and like many other predatory mammals, the dog has powerful muscles, fused wrist bones, a cardiovascular system that supports both sprinting and endurance, and teeth for catching and tearing.
What are a dog's teeth mainly used for?
A: catching and tearing


Context and question: Genome composition is used to describe the make up of contents of a haploid genome, which should include genome size, proportions of non-repetitive DNA and repetitive DNA in details. By comparing the genome compositions between genomes, scientists can better understand the evolutionary history of a given genome.
By comparing repetitive DNA, what can scientists understand the history of?
Answer: unanswerable


Question: John Lewis Newcastle (formerly Bainbridge) in Newcastle upon Tyne, is the world's oldest Department Store. It is still known to many of its customers as Bainbridge, despite the name change to 'John Lewis'. The Newcastle institution dates back to 1838 when Emerson Muschamp Bainbridge, aged 21, went into partnership with William Alder Dunn and opened a draper's and fashion in Market Street, Newcastle. In terms of retailing history, one of the most significant facts about the Newcastle Bainbridge shop, is that as early as 1849 weekly takings were recorded by department, making it the earliest of all department stores. This ledger survives and is kept in the John Lewis archives. John Lewis bought the Bainbridge store in 1952.
Is there an answer to this question: What is the former name of John Lewis Newcastle? 

Answer: Bainbridge


In 1991, there were only two proposals available that could be completely assessed for an MPEG audio standard: Musicam (Masking pattern adapted Universal Subband Integrated Coding And Multiplexing) and ASPEC (Adaptive Spectral Perceptual Entropy Coding). The Musicam technique, as proposed by Philips (the Netherlands), CCETT (France) and Institut für Rundfunktechnik (Germany) was chosen due to its simplicity and error robustness, as well as its low computational power associated with the encoding of high quality compressed audio. The Musicam format, based on sub-band coding, was the basis of the MPEG Audio compression format (sampling rates, structure of frames, headers, number of samples per frame).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many proposals were available in 1991?
Ah, so..
two