Anchor: Screening for problem  does a single question work?
Entailed: Does a single question do enough to screen for a problem?
Contradiction: A single question does not do enough to screen for a problem.
Contradiction: Casinos maintain a steadfast business model.
Contradiction: A man has some penguins in his possession.
Contradiction: A woman is reading a book.
Contradiction: A man writes on a board.