Premise:
"South of Osaka is Wakayama, a large prefecture whose long coastline and lush greenery have long been a magnet for domestic tourists."
Hypothesis: Tourists flock to the sandy beaches each summer, numbering in the tens of thousands.

it is not possible to tell

Premise:
"Is it not so? "
Hypothesis: It is so?

no

Premise:
"Reaganism is reprised, with a reference to a $100 billion tax cut--but the tax cut is Clinton's."
Hypothesis: Reaganism was brought up again in the news for a tax cut that wasn't even his, although Reagan did have a say in the tax cut, as some are lead to believe.
it is not possible to tell