Problem: Materialism:

Arthur Schopenhauer (1788-1860) wrote that "...materialism is the philosophy of the subject who forgets to take account of himself". He claimed that an observing subject can only know material objects through the mediation of the brain and its particular organization. That is, the brain itself is the "determiner" of how material objects will be experienced or perceived:

Arthur Schopenhauer lived from what year to what year?
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A: 1788-1860

Problem: The RSFSR was established on November 7, 1917 (October Revolution) as a sovereign state. The first Constitution was adopted in 1918. In 1922 the Russian SFSR signed the Treaty on the Creation of the USSR.
What event led to the abolishment of the RSFSR?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Today, about 37% of all Christians live in the Americas, and about 26% live in Europe, 24% of total Christians live in sub-Saharan Africa, about 13% in Asia and the Pacific, and 1% of the world's Christians live in the Middle east and North Africa. About half of all Christians worldwide are Catholic, while more than a third are Protestant (37%). Orthodox communions comprise 12% of the world's Christians. Other Christian groups make up the remainder. Christians make up the majority of the population in 158 countries and territories. 280 million Christian live as a minority.
About 24% of Christians live in Europe and how many in Saharan Africa?
A: unanswerable

Context and question: Additionally, the Italian Eritrea administration opened a number of new factories, which produced buttons, cooking oil, pasta, construction materials, packing meat, tobacco, hide and other household commodities. In 1939, there were around 2,198 factories and most of the employees were Eritrean citizens. The establishment of industries also made an increase in the number of both Italians and Eritreans residing in the cities. The number of Italians residing in the territory increased from 4,600 to 75,000 in five years; and with the involvement of Eritreans in the industries, trade and fruit plantation was expanded across the nation, while some of the plantations were owned by Eritreans.
What was the main export of Italian Eritrea in 1939?
Answer: unanswerable

Question: By 1990, the Census Bureau included more than a dozen ethnic/racial categories on the census, reflecting not only changing social ideas about ethnicity, but the wide variety of immigrants who had come to reside in the United States due to changing historical forces and new immigration laws in the 1960s. With a changing society, more citizens have begun to press for acknowledging multiracial ancestry. The Census Bureau changed its data collection by allowing people to self-identify as more than one ethnicity. Some ethnic groups are concerned about the potential political and economic effects, as federal assistance to historically underserved groups has depended on Census data. According to the Census Bureau, as of 2002, over 75% of all African Americans had multiracial ancestries.
Is there an answer to this question: How many different ethnic categories were listed on the modern census?

Answer: By 1990, the Census Bureau included more than a dozen ethnic/racial categories on the census,

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Unfortunately, requiring two characters to mark the end of a line introduces unnecessary complexity and questions as to how to interpret each character when encountered alone. To simplify matters plain text data streams, including files, on Multics used line feed (LF) alone as a line terminator. Unix and Unix-like systems, and Amiga systems, adopted this convention from Multics. The original Macintosh OS, Apple DOS, and ProDOS, on the other hand, used carriage return (CR) alone as a line terminator; however, since Apple replaced these operating systems with the Unix-based OS X operating system, they now use line feed (LF) as well.
When did Amiga stystems replace their CR with line feed (LF)?
A:
unanswerable