Anchor: Esther Lardent, president of the Pro Bono Institute, administers its Pro Bono Challenge, which confidentially tracks big law firms' pro bono work.
Entailed: Large law firms perform pro bono work, which is tracked by the Pro Bono Institute.
Contradiction: There is no data on the pro bono work done by large law firms.
Contradiction: The theater closed after the playwrights complained about them.
Contradiction: an action doing dog does his action on some grass
Contradiction: A boy is riding a tricycle.
Contradiction: My friend told me not to see Flatliners and Silence of the Lambs.