Input: Read this: Typical stringed instruments of the early period include the harp, lute, vielle, and psaltery, while wind instruments included the flute family (including recorder), shawm (an early member of the oboe family), trumpet, and the bagpipes. Simple pipe organs existed, but were largely confined to churches, although there were portable varieties. Later in the period, early versions of keyboard instruments like the clavichord and harpsichord began to appear. Stringed instruments such as the viol had emerged by the 16th century, as had a wider variety of brass and reed instruments. Printing enabled the standardization of descriptions and specifications of instruments, as well as instruction in their use.
Question: Where were the first pipe organs confined to?

Output: churches

QUES: Red was also featured in Chinese Imperial architecture. In the Tang and Song Dynasties, gates of palaces were usually painted red, and nobles often painted their entire mansion red. One of the most famous works of Chinese literature, A Dream of Red Mansions by Cao Xueqin (17151763), was about the lives of noble women who passed their lives out of public sight within the walls of such mansions. In later dynasties red was reserved for the walls of temples and imperial residences. When the Manchu rulers of the Qing Dynasty conquered the Ming and took over the Forbidden City and Imperial Palace in Beijing, all the walls, gates, beams and pillars were painted in red and gold.

When was Xueqin Cao alive?
What is the answer?
ANS: unanswerable

QUES: According to the latest nationwide census, Roman Catholics constituted 30.8% of the total population of Germany, followed by the Evangelical Protestants at 30.3%. Other religions, atheists or not specified constituted 38.8% of the population at the time. Among "others" are Protestants not included in Evangelical Church of Germany, and other Christians such as the Restorationist New Apostolic Church. Protestantism was more common among the citizens of Germany. The North and East Germany is predominantly Protestant, the South and West rather Catholic. Nowadays there is a non-religious majority in Hamburg and the East German states.
Where is 38.8% of the population atheists?

ANS: unanswerable

On December 25, 1991, following the collapse of the Soviet Union, the republic was renamed the Russian Federation, which it remains to this day. This name and "Russia" were specified as the official state names in the April 21, 1992 amendment to the existing constitution and were retained as such in the 1993 Constitution of Russia.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which name did Russia take after the rise of the Soviet Union?
Ah, so.. unanswerable

Question: The battle secured the beachheads of the U.S. Sixth Army on Leyte against attack from the sea, broke the back of Japanese naval power and opened the way for an advance to the Ryukyu Islands in 1945. The only significant Japanese naval operation afterwards was the disastrous Operation Ten-Go in April 1945. Kurita's force had begun the battle with five battleships; when he returned to Japan, only Yamato was combat-worthy. Nishimura's sunken Yamashiro was the last battleship in history to engage another in combat.
Try to answer this question if possible: What were the Leyte beachheads of the U.S. Sixth Army secured from?
Answer: attack from the sea

Context and question: Graduate schools include the School of Medicine, currently ranked sixth in the nation, and the George Warren Brown School of Social Work, currently ranked first. The program in occupational therapy at Washington University currently occupies the first spot for the 2016 U.S. News & World Report rankings, and the program in physical therapy is ranked first as well. For the 2015 edition, the School of Law is ranked 18th and the Olin Business School is ranked 19th. Additionally, the Graduate School of Architecture and Urban Design was ranked ninth in the nation by the journal DesignIntelligence in its 2013 edition of "America's Best Architecture & Design Schools."
What is the current national rank of Brown School of Social Work?
Answer:
currently ranked first