Sentence 1: As developers kill the bugs, they incorporate the solutions into a daily build of the program and test the build to make certain the solutions don't cause additional bugs.

Sentence 2: Developers don't know how to fix the bugs.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: (They may not even be good tools for buying day care.

Sentence 2: It could be they aren't even good tools for buying day care.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Although estimates as to when this point will be reached vary depending on several assumptions, most analysts agree that it could occur within the decade; estimates range from the Congressional Budget Office's (CBO) January 2001 estimate of 2006 to the Office of Management and Budget's March 2001 estimate of 2008.

Sentence 2: This point will be reached between 2001 and 2008.
Is this second sentence entailed by the first?

Answer:
yes