Anchor: Under Etruscan domination, Rome had been a monarchy until a revolt in 510 b.c. established a patrician republic, which lasted five centuries.
Entailed: Up until a revolt in 510 b.c. established a patrician republic, Rome had been a monarchy.
Contradiction: In 510 b.c., Rome established a monarchy that lasted for centuries.
Contradiction: Why do you have such a messy desk?
Contradiction: A long-distance runner is moving quickly.
Contradiction: I don't have any books
Contradiction: There is one woman in this picture and she is outside.