Anchor: Short-term ozone mortality risk estimates may also be affected by the statistical issue discovered by the Health Effects Institute (Greenbaum, 2002a).
Entailed: The Health Effects Institute discovered a statistical issue with short-term ozone mortality risk assessment.  
Contradiction: The Health Effects Institute did not find any issues with the short-term ozone mortality risks assessment.  
Contradiction: The soldiers put their weapons away.
Contradiction: Two million visitors went there in 1889.
Contradiction: The agency's management was unable to achieve its objectives.
Contradiction: two athletes are indoors