Premise: On Formentera, however, this is not necessarily the rule.

Hypothesis: Formentera is a game.
Answer: it is not possible to tell

Premise: The highlight is an ice sculpture competition at Odori Park, with huge superbly detailed models of castles, towers, and giant characters both traditional and modern.

Hypothesis: There is an ice sculpture competition at Odori Park as the highlight.
Answer: yes

Premise: Volcanic ash covered some of the trees while they were still alive, and over time, their trunks turned to stone.

Hypothesis: The petrified tree trunks are worth a great deal of money to collectors.
Answer: it is not possible to tell

Premise: If the speed limit is 55 mph, off-duty highway cops should drive at 55, even if 62 or 63 is close enough for the rest of us.

Hypothesis: Police officers ought to obey traffic laws, even if the rest of us don't.
Answer: yes