Sentence 1: The program achieved design stability before moving into system demonstration by incorporating mature technologies and components from other missiles and munitions, using engineering prototypes to demonstrate the design, holding a series of design reviews prior to the system level critical design review, and completing and releasing 95 percent of the engineering drawings at that time.

Sentence 2: The program did not achieve design stability.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: And once more it was Sergeant Rennie who spoke.

Sentence 2: Sergeant Rennie spoke again.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: The night goes late very late in Madrid, and there's not a day of the week that the streets aren't flooded by hordes of after-hours diners and bar-hoppers.

Sentence 2: The bar-hoppers stay out for the entire night in Madrid.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell