Problem: Here is a premise:
On the endogenous dimension, postal density could in principle be tuned by the postal operator by adjusting quality of service.

Here is a hypothesis:
Nothing that the postal operator can do will affect the postal density.

Here are the options:

Answer: no

Problem: Here is a premise:
You can walk back to the center of town along the Corniche.

Here is a hypothesis:
Walking by the Corniche will lead you back to the town center.

Here are the options:

Answer: yes

Problem: Here is a premise:
In the hills nearby are Iberian cave tombs, referred to locally as the Covetes de Moros (Moorish Caves).

Here is a hypothesis:
In the nearby valley are the Iberian cave tombs, known as the Covetes de Moros.

Here are the options:

Answer: no

Problem: Here is a premise:
i'm trying to have the oil changed at the the right times and things like that

Here is a hypothesis:
I am trying to keep up with regularly scheduled maintenance.

Here are the options:

Answer:
yes