Anchor: Perfect visibility is represented by a deciview of zero, so a decrease in deciview is an increase or improvement in visibility.
Entailed: Deciview of zero indicates perfect visibility.
Contradiction: Deciview increases indicate better visibility.
Contradiction: Two people are snowboarding.
Contradiction: USPS handles a large segment of the world's mail volume.
Contradiction: The animal was healthy.
Contradiction: A group of uniformed men cluster together.