Anchor: Based on experience in Germany in response to a compliance directive, a significant quantity of SO2 and NOX control installations were performed within outage periods consisting of less than four weeks.
Entailed: Not all installations were performed without monthly long losses of service. 
Contradiction: All of SO2 and NOX control installations in Germany last less than four weeks. 
Contradiction: The soccer players are joining forces with the ants to overtake the chess club.
Contradiction: The national language of Hindi is spoken by less than the majority
Contradiction: A woman wears a speedo.
Contradiction: Two people are walking together.