Premise:
"Questioned about China at his press conference, President Clinton admitted for the first time that his constructive-engagement policy hasn't improved China's behavior, but he maintained that it will in the future."
Hypothesis: China is not affected by Clinton's policy, and will not react to it.

it is not possible to tell

Premise:
"um i mean to me either ordering in or just going to Pizza Hut or something"
Hypothesis: Pizza Hut is a popular fast food restaurant.

it is not possible to tell

Premise:
"The city's Champagne cellars are in fact 250 km (155 miles) of galleries quarried out of the city's chalk foundations back in the days of Roman Gaul."
Hypothesis: The city's Champagne cellars are longer than 300 km.
no