Premise:
"yeah okay bye"
Hypothesis: Goodbye.

yes

Premise:
"With skyscrapers shooting up almost every month, Mumbai is the busiest industrial and commercial center in India cars, textiles, chemicals, nuclear energy, and shipping and a focus for the cinema and the renewal of Indian art."
Hypothesis: Mumbai may be the richest city in the world if it continues on its current trajectory.

it is not possible to tell

Premise:
"Since the talking heads agree with Bush's competitors that it's a non-story, Round 1 goes to Bush."
Hypothesis: Since the talking heads agree with Bush's competitors that it is a real story, Bush lost the first round.
no