QUES: Q: What chained actions resulted from the alleged violation of the Constitution of Medina by the Banu Qaynuqa Jews?
A: This escalated to a chain of revenge killings, and enmity grew between Muslims and the Banu Qaynuqa, leading to the siege of their fortress.:122
Does the answer answer the question?

ANS: yes

QUES: Q: Why did the train catch fire?
A: Reporters in Chengdu said they saw cracks on walls of some residential buildings in the downtown areas, but no buildings collapsed.
Does the answer answer the question?

ANS: no

QUES: Q: How extent can biofilm be?
A: Biofilms are also important in medicine, as these structures are often present during chronic bacterial infections or in infections of implanted medical devices, and bacteria protected within biofilms are much harder to kill than individual isolated bacteria.
Does the answer answer the question?

ANS: no

QUES: Q: Outside of North America, if someone said "lumber," to what would they be referring?
A: Wood to be used for construction work is commonly known as lumber in North America.
Does the answer answer the question?

ANS:
no