Anchor: Single-unit FGD installations have occurred in as little as 20-21 months9, and multiple FGD systems have been installed within 36 months.
Entailed: There are installations of FGD that have occurred.
Contradiction: There no are installations of FGD that have occurred.
Contradiction: Nobody has a uniform
Contradiction: Michael Lasky ran Inphomation brand into the ground because he did not predict the decline of profit margins. 
Contradiction: The pilots are in the cockpit joking around with the stewardess.
Contradiction: A crowd is cheering for a game.