Anchor: The federal response to the year 2000 computing challenge created an opportunity in many agencies for CIO and program organizations to partner in responding to specific agency mission needs.
Entailed: An opportunity was created from  The federal response to the year 2000 computing challenge.
Contradiction: An opportunity was never created from  The federal response to the year 2000 computing challenge.
Contradiction: A girl stands on the sidewalk.
Contradiction: I had a problem with his hard shell when I wrote my book.
Contradiction: The man had no glasses.
Contradiction: The train has just one man sitting on it.