Does the sentence "Provisions of ANCSA allowing the corporations' land holdings to be sold on the open market starting in 1991 were repealed before they could take effect." provide a valid answer to the question "Was a law enacted in 1991 allowing corporations to sell land holdings or was it repealed?"

A: yes

Does the sentence "For Whitehead, education should be the exact opposite of the multidisciplinary, value-free school model it should be transdisciplinary, and laden with values and general principles that provide students with a bedrock of wisdom and help them to make connections between areas of knowledge that are usually regarded as separate." provide a valid answer to the question "Whitehead's education style was to teach what?"

A: no

Does the sentence "The Mayor is Jim Kenney, who replaced Michael Nutter, who served two terms from 2009 to January 2016." provide a valid answer to the question "Who is the current mayor?"

A: yes

Does the sentence "ASCII includes definitions for 128 characters: 33 are non-printing control characters (many now obsolete) that affect how text and space are processed and 95 printable characters, including the space (which is considered an invisible graphic:223)." provide a valid answer to the question "What is the space also known as what?"

A:
yes