Anchor: Four middle-to-high-school-aged children sit around a table, eating a meal and talking.
Entailed: The four children sitting at the table eating and talking are middle-to-high-school-aged.
Contradiction: The four toddlers sit at a table and eat together.
Contradiction: Lupynec said the detector sales went down
Contradiction: The desks don't match the uniforms.
Contradiction: A person rides a unicycle.
Contradiction: Animals are running.