Premise:
" One important note of the summer sun easily wreaks havoc with the unwary, and it really is a case of only mad dogs and Englishmen, as Noel Coward put it."
Hypothesis: Adequate preparation prevents any danger from the summer sun.

it is not possible to tell

Premise:
"uh-huh well you see now that's what i do and um but that that's just about enough and uh uh i mean not that i wouldn't like to walk more but uh um i've"
Hypothesis: Oh no, not that because I'd prefer not to walk more.

yes

Premise:
"And she almost always succeeded."
Hypothesis: It was rare for her to succeed at anything.
no