QUES: Q: How do servo motors differ from stepper motors?
A: For instance, when a typical dot matrix computer printer starts up, its controller makes the print head stepper motor drive to its left-hand limit, where a position sensor defines home position and stops stepping.
Does the answer answer the question?

ANS: no

QUES: Q: Besides the Greeks, what other culture contributed to the study of botany?
A: Important contributions from the medieval Muslim world include Ibn Wahshiyya's Nabatean Agriculture, Abu Hanifa Dinawari's (828896) the Book of Plants, and Ibn Bassal's The Classification of Soils.
Does the answer answer the question?

ANS: yes

QUES: Q: Which building became the first university skyscraper in the U.S.?
A: The building would become the first university skyscraper in the United States.
Does the answer answer the question?

ANS: no

QUES: Q: What was the aim of the partnership with Fold3.com?
A: On January 10, 2007, the National Archives and Fold3.com (formerly Footnote) launched a pilot project to digitize historic documents from the National Archives holdings.
Does the answer answer the question?

ANS:
yes