Premise:
"Supposing we sit down, she said pleasantly."
Hypothesis: When they sat down, they sat on chairs.

it is not possible to tell

Premise:
"A collection of related data records, also referred to as a data set (for example, the collected questionnaire responses from a group of people)."
Hypothesis: Data records are important to improve internal control systems.

it is not possible to tell

Premise:
"Results are based on a model called the Model of Acidification of Groundwater in Catchments (MAGIC) used by the National Acid Precipitation Assessment Program (NAPAP) to estimate the long-term effects of acidic deposition (sulfur) on lakes and streams."
Hypothesis: Long-term deposition leads to increased water pollution.
it is not possible to tell