Premise:
"The university had recently developed more explicit policies on system"
Hypothesis: These policies included mandatory password changes every month.

it is not possible to tell

Premise:
"One convenience of a paper magazine that will take the digital variety a while to match is portability."
Hypothesis: Paper magazines have to stay at the library.

no

Premise:
"oh do are you can you put them can you put them right in the water or oh that's good"
Hypothesis: You can put them right in the water.
yes