Premise:
"you need to start the grill"
Hypothesis: Let's have a barbecue.

it is not possible to tell

Premise:
"OK, never mind."
Hypothesis: Ok, forget about it.

yes

Premise:
"She believed that the ED setting is just one of many where alcohol problems should be addressed."
Hypothesis: She had been an addict for many years.
it is not possible to tell