Sentence 1: The woman was dark skinned and carried a short spear.

Sentence 2: She walked with pride, holding her spear in one hand.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: that one pint of brake fluid can contaminate so many gallons of water you know like hundreds of gallons of water

Sentence 2: brake fluid is one of the biggest threats to the water table
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The Cost of Universal Service Obligations in a Competitive Environment.

Sentence 2: Competitive environments affect the costs of service obligations.
Is this second sentence entailed by the first?

Answer:
yes