Sentence 1: Unfortunately all this was lost in a series of earthquakes in the early centuries of the first millennium and Ancient Alexandria now rests below the waters of today's harbor.

Sentence 2: Ancient Alexandria is often visited by scuba diving tourists.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Keirsey has redefined these four pairs this

Sentence 2: Keirsey has redefined these pairs as a new phenomenon.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: How different? He paused a moment, then went on: "Where is the girl now?"

Sentence 2: He was trying to find the girl.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
it is not possible to tell