Premise:
"He winked broadly, then gave her a wide, rakish smile that lit her soul with excitement."
Hypothesis: He didn't wink, or give any smiles, just walked past her and left.

no

Premise:
"there's so many accidents with children accidentally getting a hold of guns"
Hypothesis: Kids sometimes get pass children safeguards.

it is not possible to tell

Premise:
"The Bush people say the results of their effort aren't in yet, but they're optimistic and expect to stick with Internet advertising."
Hypothesis: The results of their effort won't be in for 5 days.
it is not possible to tell