Anchor: Although the consistent advice from EPA's Science Advisory Board has been to model premature mortality associated with PM exposure as a non-threshold effect, that is, with harmful effects to exposed populations regardless of the absolute level of ambient PM concentrations, some analysts have hypothesized the presence of a threshold relationship.
Entailed: The EPA's Science Advisory Board produces collects data on premature mortality rates.
Contradiction: No threshold relationship exists.
Contradiction: The men are talking about baseball.
Contradiction: Understanding such controls can be vital when planning an audit.
Contradiction: the friends are asleep
Contradiction: The woman is from an African country.