Anchor: They went down in single file, Julius leading.
Entailed: Julius led them down in a line.
Contradiction: They moved in a mob, with Julius in the middle.
Contradiction: The dog is laying by the fireplace.
Contradiction: Only 2 to 4 are stated.
Contradiction: We have confirmed our belief that cells in mature animal tissue are irreversibly differentiated.
Contradiction: A concert series being hosted by a couple of people.