Anchor: Testimony Congressional committee or subcommittee Chairs frequently request that GAO prepare testimony statements and that GAO witnesses appear at hearings.
Entailed: GAO witnesses must appear at any hearings.
Contradiction: GAO witnesses must not appear at any hearings.
Contradiction: He's not concerned with you.
Contradiction: Two children are walking outside.
Contradiction: This site contains no links to any publications.  
Contradiction: Convicts don't serve their full sentences if they exhibit good behavior.