Anchor: Second research  What are the sources of these shifts in the consumption of postal delivery services?
Entailed: Consumption of postal delivery services have changed.
Contradiction: Postal delivery services do not experience market shifts.
Contradiction: None of the US workers are lawful permanent resident aliens.
Contradiction: Players jumping in a basketball game.
Contradiction: I feel completely comfortable answering this question.
Contradiction: Due to his past injuries he is not as fast as younger people who unintentionally capitalize on that fact.