QUES: Q: This group wanted accountability for what 1989 event?
A: They wanted accountability for the Tiananmen Square protests of 1989 and the implementation of democracy in Hong Kong.
Does the answer answer the question?

ANS: yes

QUES: Q: What is a greenstone belt?
A: In short, greenstone belts represent sutured protocontinents.
Does the answer answer the question?

ANS: yes

QUES: Q: What popular type combines more that one antenna?
A: The ordinary half-wave dipole is probably the most widely used antenna design.
Does the answer answer the question?

ANS: no

QUES: Q: How many metres apart are 181st Street's two subway stations?
A: 181st Street is served by two New York City Subway lines; there is a 181st Street station at Fort Washington Avenue on the IND Eighth Avenue Line (A trains) and a 181st Street station at St. Nicholas Avenue on the IRT Broadway Seventh Avenue Line (1 trains).
Does the answer answer the question?

ANS:
no