Sentence 1: It's all very well to laugh, but I feel there might be something in it.

Sentence 2: Laughing isn't a problem, but I think there is something behind the laughing.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Windsurfing is a major attraction on Ibiza and Formentera; equipment can be hired at escuelas de windsurfing as well as many resorts.

Sentence 2: Windsurfing is a very popular activity in Ibiza.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: They are still responsible for making sure that they can rely on the quality of the automated systems to ensure that invoices authorized for payment are legal, proper, valid, and correct.

Sentence 2: They are still responsible for making sure that they can rely on the quality of the automated systems to ensure that invoices authorized for payment are legal, proper, valid, and correct.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
yes