Does the sentence "As in most of eastern China the ethnic makeup of Nanjing is predominantly Han nationality (98.56 percent), with 50 other minority nationalities." provide a valid answer to the question "What is the overwhelming ethnic majority in Nanjing?"

A: yes

Does the sentence "The earliest known use of the phrase Brytish Iles in the English language is dated 1577 in a work by John Dee." provide a valid answer to the question "What is the earliest English usage of the term Brytish Illes?"

A: yes

Does the sentence "These same constraints have seen a sharp reduction in flight hours for crew training since 2005 and the Deputy Chief of Staff for Manpower and Personnel directing Airmen's Time Assessments." provide a valid answer to the question "What has there been a sharp reduction in during the years following 2005 in the USAF?"

A: yes

Does the sentence "The proposed name for the merged company was "AT&T Comcast", but the companies ultimately decided to keep only the Comcast name." provide a valid answer to the question "What did Comcast pay for this subsidiary?"

A:
no