Premise:
"Then they get cut off again."
Hypothesis: The connection is ended.

yes

Premise:
"Bush's surrogates claim that he's leading a heroic effort to purge the system of this 'gotcha' politics."
Hypothesis: Bush's surrogates say that his effort to get rid of "gotcha" politics is heroic.

yes

Premise:
"Then head northeast of town to the Renon (Ritten) plateau for views of the Dolomite peaks, reached by cableway and rack railway."
Hypothesis: There is a rack railway going to the Dolomite peaks.
yes