Premise: For visibility, benefits were calculated based on changes in fine particle concentrations, presented as deciviews, which are provided by the REMSAD air quality model.

Hypothesis: Benefits were calculated based on how bright the liquid was.
Answer: no

Premise: Fossils tell an obscure story of man's slow and sporadic development.

Hypothesis: The fossils found in the tar pits tell the story of mans development.
Answer: it is not possible to tell

Premise: Anyone with any sense could see at once that her husband had poisoned her.

Hypothesis: No one could have figured out that the husband had poisoned her.
Answer: no

Premise: Both have their trade-offs.

Hypothesis: Neither of them had any trade-offs.
Answer: no