Anchor: Two women and three men are hiking along a rocky stream.
Entailed: Two woman and three men are hiking along a stream.
Contradiction: Several people are in the stream.
Contradiction: The cat is roaming through a kitchen.
Contradiction: Due to medical professionals being uninformed about many poisons, there were many instances where poisoning cases went undetected. 
Contradiction: The man is holding a saxophone.
Contradiction: A child is in the water.