Premise:
"not realize that black and white it nowadays it's actually more expensive than uh color"
Hypothesis: Black and white photography is more expensive than color.

it is not possible to tell

Premise:
"I thought not. "
Hypothesis: I was sure the answer was yes.

no

Premise:
"San'doro pulled him down and tore him open."
Hypothesis: San'doro pulled down his opponent and cut him open.
yes