QUES: Q: What is the main ingredient in the groundwood process?
A: Mechanical pulping does not remove the lignin, so the yield is very high, >95%, however it causes the paper thus produced to turn yellow and become brittle over time.
Does the answer answer the question?

ANS: no

QUES: Q: What warrior class rose during the Heian era?
A: The period is also noted for the rise of the samurai class, which would eventually take power and start the feudal period of Japan.
Does the answer answer the question?

ANS: yes

QUES: Q: How was the case of two bills mistakenly assented corrected both in 1796 and 2001?
A: In 1976, a bill originating in the House of Representatives was mistakenly submitted to the Governor-General and assented to.
Does the answer answer the question?

ANS: no

QUES: Q: What percent of the worlds population did Africa posses at the Berlin Conference?
A: At the time of the Berlin Conference, Africa contained one-fifth of the world's population living in one-quarter of the world's land area.
Does the answer answer the question?

ANS:
yes