QUES: Q: What minority leaders have played prominenct roles to opposing incumbent president?
A: For that situation the House Minority Leader can play the role of a de facto "leader of the opposition", often more so than the Senate Minority Leader, due to the more partisan nature of the House and the greater role of leadership.
Does the answer answer the question?

ANS: no

QUES: Q: What is the east-west waterway near Nanjing?
A: door of the east and west, throat of the south and north".
Does the answer answer the question?

ANS: no

QUES: Q: When were humanism beliefs mixed with another philosophy by a Taoist thinker?
A: In the 6th century BCE, Taoist teacher Lao Tzu espoused a series of naturalistic concepts with some elements of humanistic philosophy.
Does the answer answer the question?

ANS: yes

QUES: Q: When was Kosem murdered?
A: The Sultanate of women (16481656) was a period in which the mothers of young sultans exercised power on behalf of their sons.
Does the answer answer the question?

ANS:
no