Anchor: Athens became the most powerful, heralding the start of the classical Greek period.
Entailed: The start of the classical Greek period began as Athens became the most powerful.
Contradiction: The classical Greek period began as Athens fell precipitously from power.
Contradiction: The people are taking a nap.
Contradiction: Only as a last option would RIFs would be used.
Contradiction: A reporter is being taped during a quiet sunny day.
Contradiction: People stand near a designing boat.