Anchor: Two yellow dogs play in a green plastic pool.
Entailed: Two hounds romp around in a pool.
Contradiction: The pooches lay around under the table.
Contradiction: There is a gold disc that surrounds the hole.
Contradiction: It is on late Saturday nights and I have seen it.  
Contradiction: The boy is standing.
Contradiction: The National Ambient Air Quality Standard measures pollutants.