Anchor: Two students having a conversation on the other side of a concrete wall, which has a common sitting are on the other side.
Entailed: Two people are talking.
Contradiction: Two students are talking in a tree.
Contradiction: The students are in a library.
Contradiction: Two people are sitting near eachother silently in a common area.
Contradiction: The student watched as the mascot did a cartwheel.
Contradiction: Three students are working on a project.