Anchor: Three African Americans are in the middle of a muddy stream in a blue boat.
Entailed: there are some african americans are stuck in mud due to their poor swimming abilities
Contradiction: there is a pure water no chance of muddy stuff
Contradiction: The children are in the classroom.
Contradiction: There is a possibility that Amazon ignored the instructions.
Contradiction: A man is in the pool.
Contradiction: printing things in my office saves me time and effort