Premise:
"However, the revisions did not impact the burden hours previously approved by OMB."
Hypothesis: These revisions supersede the previously approved OMB burden hours.

no

Premise:
"We'd have been here before only we lost our way."
Hypothesis: This is not the first time we've been here, we are lost.

yes

Premise:
"Return to Foog's Gate the name and age of the gate remain a source of debate to enter the upper ward and the oldest parts of the castle."
Hypothesis: No one knows when Foog's Gate was built.
yes