Anchor: But Java programs are still considerably slower than those written for a particular operating system, just as amphibious creatures are not as good on land as mammals or as good in water as fish.
Entailed: Java programs are slower than those written for a particular operating system.
Contradiction: Java programs are faster than programs written for Windows.
Contradiction: He was a skinny man with bony fingers.
Contradiction: The girl is outside.
Contradiction: Overhype is not a real term.
Contradiction:  the efficacy of the initiative has not been fully assessed