Anchor: The installation and operation of SCR systems is not expected to be constrained by the future availability of ammonia or urea.
Entailed: The future availability of ammonia isn't expected to affect the installation and operation of SCR systems.
Contradiction: The operation of SCR systems will be constrained by availability of urea.
Contradiction: Hong Kong is the worst place in the world to buy photography equipment.
Contradiction: Dogs are racing.
Contradiction: A woman in red is dancing.
Contradiction: The Early Dynastic period predates the old, middle, and new kingdoms.