Premise:
"The general massacre of Protestants spread to the countryside, and by October another 30,000 had lost their lives."
Hypothesis: The Protestants were slaughtered by people of a different religion.

yes

Premise:
"We were rolling."
Hypothesis: Rolling occurred and we were involved.

yes

Premise:
"The number of Arawak had already fallen dramatically, so the Spanish began to import slaves from Africa to work the land; the first Africans arrived in 1517."
Hypothesis: The Spanish had plenty of Arawak to use as slaves.
no