Research across long documents without losing provenance
Keep exceptions when summarizing long documents.
Reviewed: 2026-10-03
Source-based teaching example · Fictional data
Narration: Microsoft Mark · locally synthesized

00:00:00.000 — What you will learn

Keep exceptions when summarizing long documents.

Visual description:
Keep exceptions when summarizing long documents.

00:00:06.125 — The idea

Find the rule and its exceptions before combining summaries. Preserve section references. A short summary must not turn a qualified rule into an absolute one.

Visual description:
Find the rule and its exceptions before combining summaries. Preserve section references. A short summary must not turn a qualified rule into an absolute one.

00:00:19.667 — One useful term

Provenance. The record connecting a statement to its source and version.

Visual description:
The record connecting a statement to its source and version.

00:00:27.208 — A worked example

Section two says standard review takes five days. Section eight requires supervisor review for urgent requests without a timing guarantee. “All reviews finish in five days” loses that exception.

Visual description:
Section two says standard review takes five days. Section eight requires supervisor review for urgent requests without a timing guarantee. “All reviews finish in five days” loses that exception.

00:00:43.125 — Your turn to think

Does the standard-review timing also establish urgent-review timing? Pause and decide before continuing.

Visual description:
Does the standard-review timing also establish urgent-review timing?
Pause the video if you need more time.

00:01:00.833 — Why this answer works

No. Keep urgent timing unknown and cite both sections. Check the applicable version’s conditions.

Visual description:
No. Keep urgent timing unknown and cite both sections. Check the applicable version’s conditions.

00:01:10.875 — Check 1

Look for exceptions in distant sections.

Visual description:
Look for exceptions in distant sections.

00:01:16.333 — Check 2

Keep source and version references.

Visual description:
Keep source and version references.

00:01:21.500 — Check 3

Preserve exclusions and unresolved timing.

Visual description:
Preserve exclusions and unresolved timing.

00:01:27.083 — Now try a different case

Open the lesson and try its different practice case. Use every check in the full task. Watching alone does not mark the lesson complete.

Visual description:
Open the lesson
Try the new case
Check and revise
The full task and its requirements are in the linked lesson.