Anchor: A group of people riding a roller coaster upside down.
Entailed: People are riding on a roller coaster.
Contradiction: A group of people rode a roller coaster but it stalled.
Contradiction: A man is sewing a button.
Contradiction: My opinion is that teachers aren't very good at discipline now.
Contradiction: I'm for neither concealed or unconcealed.
Contradiction: The oldest acknowledgment of the settlement's existence dates back to the ninth century.