Anchor: Students are sitting lined up on stair steps while they wait and check their electronic devices.
Entailed: Some students are waiting on a stair case.
Contradiction: A group of kids are writing on a chalkboard.
Contradiction: Students are standing in a circle holding hands.
Contradiction: The students are sitting on chairs
Contradiction: Coal miners are extracting coal from a mine.
Contradiction: As the school's closing bell goes off, so many students are running towards the school buses