Does the sentence "By the end of 641 all of Egypt was in Muslim hands." provide a valid answer to the question "What group of people ruled the northern shoes of the Sahara?"

A: no

Does the sentence "A greater understanding of the social and cultural dimensions of tuberculosis may also help with stigma reduction." provide a valid answer to the question "Education about TB seems to decrease the stigma of the disease and lead to what other positive effect?"

A: no

Does the sentence "Kuaiji Commandery was the initial power base for Xiang Liang and Xiang Yu's rebellion against the Qin Empire which initially succeeded in restoring the kingdom of Chu but eventually fell to the Han." provide a valid answer to the question "What was the initial power base for Xiang Liang and Xiang Yu's rebellion?"

A: yes

Does the sentence "The La Monica Ballroom on the pier was once the largest ballroom in the US and the source for many New Year's Eve national network broadcasts." provide a valid answer to the question "What year was the Sanat Monica Pier buildt?"

A:
no