Premise:
"JNET was launched in 1998 by the Ridge-Schweiker administration to help local and state police, courts, prisons and probation and parole officers exchange instantly updated information on individuals moving through the criminal justice system - making it possible to better track potentially dangerous individuals."
Hypothesis: The Ridge-Schweiker administration launched JNET in 1998.

yes

Premise:
"Tanenhaus accuses Chambers of having inadvertently instigated McCarthyism, and shows us Chambers' paranoia, his introversion, his sententiousness (Stephen Koch, the Wall Street Journal ). (Also, see Slate's mildly critical review by Ann Douglas.)"
Hypothesis: Tanehaus accuses Chambers of instigating McCarythism due to his paranoia and introversion.

yes

Premise:
"At the top of the tower is a white ball on a metal stake."
Hypothesis: There is nothing inside the tower.
no