Does the sentence "The city was surrounded by eight barracks guarded by Ajimas." provide a valid answer to the question "How many barracks guarded ancient Kathmandu?"

A: yes

Does the sentence "BeiDou-2 (formerly known as COMPASS) is not an extension to the older BeiDou-1, but rather supersedes it outright." provide a valid answer to the question "What was the BeiDou-2 system previously known as?"

A: yes

Does the sentence "The ability to look at an item and remember what it looked like with just a split second of observation, or memorization, is the example of sensory memory." provide a valid answer to the question "Who did the first studies on exploring a new idea of sensory memory?"

A: no

Does the sentence "The National Security Act of 1947 was signed on on 26 July 1947 by President Harry S Truman, which established the Department of the Air Force, but it was not not until 18 September 1947, when the first secretary of the Air Force, W. Stuart Symington was sworn into office that the Air Force was officially formed." provide a valid answer to the question "What does the USAAF stand for?"

A:
no