Anchor: The choice of installing the SCR reactor near the ground level or elevated well above ground level depends upon which configuration is viewed as most cost effective while considering installation cost and operating cost.
Entailed: There is a choice in where to install an SCR reactor.
Contradiction: SCR reactors can only be installed near to ground level.
Contradiction: The woman is sitting on a chair.
Contradiction: A sidewalk is the UK is being repaired.
Contradiction: People are watching a daredevil eat a hot dog.
Contradiction: Two boys outside.