Premise:
"A tapa is a mouthful of anything that tastes good and fits on a cocktail stick."
Hypothesis: Anything that can fit on a cocktail stick has no chance of being a tapa.

no

Premise:
"Red and yellow flames."
Hypothesis: There was a hot fire.

it is not possible to tell

Premise:
"Si, but not a real fight."
Hypothesis: Yes, but not a real fight.
yes