Anchor: sulfur levels, a 4 percent sulfur coal can increase consumption by about one-third.
Entailed:  A 4% sulfur coal can increase use by 1/3
Contradiction: 4% sulfur coal doesn't influence use
Contradiction: The boy is in a suit.
Contradiction: Hikers are walking along a pathway.
Contradiction: The kids have no costumes.
Contradiction: A man is sitting on the floor in the garage working on a tea pot