Anchor: A rollerblader catches a cool grind.
Entailed: Someone is rollerblading.
Contradiction: A bicyclist is riding down a path.
Contradiction: The column is complete undecorated, with no artwork at all on its surface. 
Contradiction: A racer makes a turn on the muddy track
Contradiction: The bench is imaginary.
Contradiction: Despite his unpopularity due to the Vietnam War, the economy had recovered enough that Nixon was looked on favorably by a lot of voters.