Input: Read this: A PM motor does not have a field winding on the stator frame, instead relying on PMs to provide the magnetic field against which the rotor field interacts to produce torque. Compensating windings in series with the armature may be used on large motors to improve commutation under load. Because this field is fixed, it cannot be adjusted for speed control. PM fields (stators) are convenient in miniature motors to eliminate the power consumption of the field winding. Most larger DC motors are of the "dynamo" type, which have stator windings. Historically, PMs could not be made to retain high flux if they were disassembled; field windings were more practical to obtain the needed amount of flux. However, large PMs are costly, as well as dangerous and difficult to assemble; this favors wound fields for large machines.
Question: What can a PMM motor not be adjusted for?

Output: unanswerable

QUES: MIME defines two different mechanisms for encoding non-ASCII characters in email, depending on whether the characters are in email headers (such as the "Subject:"), or in the text body of the message; in both cases, the original character set is identified as well as a transfer encoding. For email transmission of Unicode the UTF-8 character set and the Base64 or the Quoted-printable transfer encoding are recommended, depending on whether much of the message consists of ASCII-characters. The details of the two different mechanisms are specified in the MIME standards and generally are hidden from users of email software.

How many different mechanisms does MIME define for encoding Unicode in email?
What is the answer?
ANS: two different mechanisms

QUES: Sanskrit linguist Madhav Deshpande says that when the term "Sanskrit" arose it was not thought of as a specific language set apart from other languages, but rather as a particularly refined or perfected manner of speaking. Knowledge of Sanskrit was a marker of social class and educational attainment in ancient India, and the language was taught mainly to members of the higher castes through the close analysis of Vyakaranins such as Panini and Patanjali, who exhorted proper Sanskrit at all times, especially during ritual. Sanskrit, as the learned language of Ancient India, thus existed alongside the vernacular Prakrits, which were Middle Indo-Aryan languages. However, linguistic change led to an eventual loss of mutual intelligibility.
In what country did the lower class study Sanskrit?

ANS: unanswerable

Although technically not a university, the FAA's Mike Monroney Aeronautical Center has many aspects of an institution of higher learning. Its FAA Academy is accredited by the North Central Association of Colleges and Schools. Its Civil Aerospace Medical Institute (CAMI) has a medical education division responsible for aeromedical education in general as well as the education of aviation medical examiners in the U.S. and 93 other countries. In addition, The National Academy of Science offers Research Associateship Programs for fellowship and other grants for CAMI research.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What institution is accredited by the North Central Association of Colleges and Schools?
Ah, so.. Mike Monroney Aeronautical Center

Question: More detail was given in Darwin's 1868 book on The Variation of Animals and Plants under Domestication, which tried to explain heredity through his hypothesis of pangenesis. Although Darwin had privately questioned blending inheritance, he struggled with the theoretical difficulty that novel individual variations would tend to blend into a population. However, inherited variation could be seen, and Darwin's concept of selection working on a population with a range of small variations was workable. It was not until the modern evolutionary synthesis in the 1930s and 1940s that a model of heredity became completely integrated with a model of variation. This modern evolutionary synthesis had been dubbed Neo Darwinian Evolution because it encompasses Charles Darwin's theories of evolution with Gregor Mendel's theories of genetic inheritance.
Try to answer this question if possible: When was The Variation of Animals and Plants under Domestication by Charles Darwin published?
Answer: 1868

Input: Read this: In Virginia prior to 1920, for example, a person was legally white if having seven-eights or more white ancestry. The one-drop rule originated in some Southern United States in the late 19th century, likely in response to whites' attempt to maintain white supremacy and limit black political power following the Democrats' regaining control of state legislatures in the late 1870s. The first year in which the U.S. Census dropped the mulatto category was 1920; that year enumerators were instructed to classify people in a binary way as white or black. This was a result of the Southern-dominated Congress convincing the Census Bureau to change its rules.
Question: When was a person legally white in South Carolina before 1920?

Output:
unanswerable