Anchor: A small group of people are in a small red boat and it is in the air over the ocean.
Entailed: A group of peopel are in a red boat.
Contradiction: The people in the yellow canoe are paddling through the ocean.
Contradiction: The man is holding a tuba.
Contradiction: The cost of making changes to product design after it passes a decision and investments are made increases. 
Contradiction: Our topic is education. 
Contradiction: There is no evidence of malice.