Anchor: The use of test organisms taken from the receiving water has strong appeal, and would seem to be the logical approach.
Entailed: The use of test organisms in the receiving water is appealing.
Contradiction: The use of test organisms in the receiving water is a terrible idea.
Contradiction: People under 21 years of age can enter the area.
Contradiction: The men are near some train tracks.
Contradiction: The streets are empty of people today.
Contradiction: humans outside