Premise:
"You are not aware of what has happened?"
Hypothesis: The person asked the other one if they were aware of what has happened.

yes

Premise:
"Examples of Control Activities"
Hypothesis: There are several examples of control activities

it is not possible to tell

Premise:
"As it turns out, it may not be such a good idea to welcome them into our workplaces and schools either, at least not as warmly as we have."
Hypothesis: We are not supposed to be kind to them.
yes