Problem: Here is a premise:
A float drifted by, bearing scantily clad mascots.

Here is a hypothesis:
There was no floats in the parade.

Here are the options:

Answer: no

Problem: Here is a premise:
But it's also true that in every case, these cynical charges have stuck.

Here is a hypothesis:
The charges sticking was surprising to everyone.

Here are the options:

Answer: it is not possible to tell

Problem: Here is a premise:
Not in a case of poisoning. Mrs. Cavendish's clear voice startled me.

Here is a hypothesis:
"Not in a case of poisoning" Mrs. Cavendish said.

Here are the options:

Answer: yes

Problem: Here is a premise:
Levin accompanies the orchestra, continuo-style, during the tutti sections--passages when the soloist is normally silent.

Here is a hypothesis:
Levin is apart of the orchesta.

Here are the options:

Answer:
yes