Anchor: coming up negative but i do take prescription drugs and i'm always been afraid that those were going to come up and show something on any of the tests
Entailed: I take prescription drugs and worry about them showing up on drug tests.
Contradiction: I don't take prescription medication.
Contradiction: I'm sure it's strychnine.
Contradiction: two dogs are running through a field
Contradiction: Two people going downstream
Contradiction: Exercise eh?