Anchor: FGD systems are installed on the back end of a facility, are usually built close to the ground, and do not require the amounts of structural steel generally associated with elevated installations such as SCR.
Entailed: FGD systems are built close to the ground.
Contradiction: FGD systems are the most costly to install.
Contradiction: Two men kick rocks down the street.
Contradiction: A man rides a bicycle off-road.
Contradiction: It hasn't been modernized recently.
Contradiction: A woman holding a bright colored box.