Premise:
"Vampire is specifically prohibited from turning into a flying homonculus."
Hypothesis: In particular, Vampire is not allowed to turn into a miniature person who can fly.

yes

Premise:
"Ethicists also have trouble recognizing the new issues because they're trained to look for moral problems in technology's costs, not in its benefits."
Hypothesis: Ethnicists think that the cost of technology is highly immoral

it is not possible to tell

Premise:
"In the liquid state, it was jet black, though it cooled back to complete transparency."
Hypothesis: It was jet black until cooled.
yes