Premise:
"Of Rome's countless inspirational churches and palazzos, it is the Colosseum what Byron called the gladiator's bloody circus 'that is the symbol of the city's eternity."
Hypothesis: Though the Colosseum is partly damaged today, it has stood for nearly 2,000 years.

it is not possible to tell

Premise:
"Asked this morning how many had been saved from the Lusitania."
Hypothesis: There were some on the Lusitania who had been saved.

yes

Premise:
"Out here we grind our own and it's always this color till it's cooked.""
Hypothesis: We grind our own wheat, and it's always yellow until it has been cooked.
it is not possible to tell