Sentence 1: By the Corps' estimate, the savings created amounted to about $6 million annually and a reduction of 175 full-time equivalent staff years.

Sentence 2: The savings was about $12 billion each year.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Since independence the political culture of Jamaica, which started out with such confidence and optimism, has been fraught with problems.

Sentence 2: The political culture of Jamaica was pessimistic after independence, but has gradually grown in confidence.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: I then launched Xwindows.

Sentence 2: I then launched Windows XP.
Is this second sentence entailed by the first?

Answer:
no