Problem: Here is a premise:
We had vainly tried to trace the fourth letter, which Mrs. Inglethorp had written on the evening preceding her death.

Here is a hypothesis:
The third letter was written by Mrs. Inglethorp.

Here are the options:

Answer: it is not possible to tell

Problem: Here is a premise:
This has rekindled the concern and outrage sparked a few weeks ago by the similar death of a pledge at Louisiana State University.

Here is a hypothesis:
A pled died at Louisiana State University a few weeks ago.

Here are the options:

Answer: yes

Problem: Here is a premise:
In neighbouring Jaffa there are more nightspots offering touristy Oriental folklore entertainment.

Here is a hypothesis:
Jaffa doesn't have much of a nightlife, especially for tourists.

Here are the options:

Answer: no

Problem: Here is a premise:
Just across the border is the huge Lo Wu Cityshopping mall, to which you can walk; other shopping malls are nearby.

Here is a hypothesis:
There are several malls in the same part of the city.

Here are the options:

Answer:
it is not possible to tell