Anchor: Subsystems did not fit together properly, and many failed ground and environmental tests the first time.
Entailed: The subsystems didn't pass the first ground and environmental tests.
Contradiction: Subsystems fit together perfectly, which was unexpected.
Contradiction: Their backs were gently massaged.
Contradiction: Two dogs outside.
Contradiction: The dog is chasing a lizard.
Contradiction: I just did the task.