Sentence 1: 5 ambient concentrations; visibility; ambient concentrations and deposition fluxes of several hazardous air pollutants, including mercury; deposition fluxes of nutrient nitrogen; and deposition of acids such as sulfuric acid and nitric acid.

Sentence 2: Mercury is a hazardous air pollutant.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: How are you going to keep the game up?"

Sentence 2: How are you planning to keep the game going?
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: I've written to Mr. Carter about it," she added, and told him the gist of her letter.

Sentence 2: She wrote to Mr. Carter about something important.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
it is not possible to tell