Anchor: For those who find it difficult to appreciate mosaics as we usually see them, in fading indecipherable fragments, the beautifully preserved mosaic decoration of Ravenna's churches, up to 1,500 years old, come as an exciting revelation.
Entailed: The Ravenna's church's mosaics are exceptional.
Contradiction: It is impossible to consider a mosaic as a whole. 
Contradiction: He cared greatly about every single person he had met.
Contradiction: David Plotz thinks there's something wrong with old people who do drugs.
Contradiction: Implementing full automation requires fast pay be enacted.
Contradiction: Two people are riding camels.