Anchor: Reducing mercury emissions will reduce mercury deposition in lakes and streams.
Entailed: Mercury can be deposited into lakes and streams.
Contradiction: It is impossible to reduce the mercury deposition into lakes and streams, even when reducing mercury emissions.
Contradiction: Programs opted for an informal approach to mentoring staff.
Contradiction: There is a staircase.
Contradiction: You need great French because it's impossible to live wihtout it.
Contradiction: My house was very expensive when I bought it a quarter century ago.