Anchor: The authorities must take the challenge of crop substitution seriously, it said.
Entailed: Crop substitution is a serious thing.
Contradiction: Crop substitution isn't needed. 
Contradiction: A dog is sitting on the carpet.
Contradiction: There is a woman in the kitchen.
Contradiction: Salt pans have only been in use since Medieval times.
Contradiction: The Kingdom of Vijayanagar found itself leading the infighting.