Premise: The case is not clear yet, no.

Hypothesis: It's not yet clear.
Answer: yes

Premise: The rain irrigates the forests and fills the streams, waterfalls, and rivers that feed the lakes, so without it, of course, the magnificent landscapes would be altered forever.

Hypothesis: Without the rain, the magnificent landscapes would dry up.
Answer: yes

Premise: Newsweek 's meaty package explains Heaven's Gate's daft cosmology and catalogs America's other doomsday sects.

Hypothesis: Newsweek refuses to explain or cover any cosmology or doomsday sects.
Answer: no

Premise: PR Gates is visiting Washington this week for schmoozing and a Senate hearing.

Hypothesis: PR Gates was banned from entering Washington.
Answer: no