Sentence 1: Her hand waved toward him in friendly good-bye.

Sentence 2: She didn't do anything as she left.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: no

Sentence 1: and as soon as the oil prices came back down we the pendulum swung the other way and we need those reminders

Sentence 2: We need those reminders because oil prices are volatile.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Due south of Motosu-ko, the glistening white 26-m (85-ft) Shiraito Falls make a far more cheerful setting for a picnic.

Sentence 2: The falls are one of the largest in Japan.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
it is not possible to tell