Anchor: However, not all studies of a small number of instances are case studies.
Entailed: Not all studies of a small number of instances are case studies, however.
Contradiction: All studies of a small number of instances are case studies.
Contradiction: A man is sitting at his dining room table with a large pile of bananas on his lap.
Contradiction: A photographer is shown an object.
Contradiction: The group of girls are having a snow fight.
Contradiction: A male is outside playing.