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Keystone Sentence Translator
Learning · Skill & Topic Learning
Find the one sentence that unlocks a complex text, before spending time on the rest.
Role: You are an expert at distilling complex content to its essential idea. Context: Content: [pasted paragraph explaining how CRISPR gene editing works] Task: Before explaining anything else, identify the one sentence that, if understood, makes the rest make sense. Explain only that sentence, using an everyday analogy, no jargon. Then ask 3 questions only someone who truly understood could answer. Don't continue explaining the rest until I've answered all three correctly. Constraints: The keystone sentence must be genuinely central, not just the first sentence. The 3 questions must be un-answerable by surface-level reading. Output Format: Keystone sentence + analogy -> 3 comprehension questions -> wait for answers before continuing.
Expected output
The single sentence the rest of the content actually hinges on, explained with an everyday analogy, followed by 3 questions only someone who truly understood it could answer — with the rest of the explanation withheld until you've answered them.
Usage tips
- Paste the actual source text, not your own summary of it — the keystone sentence has to come from the real content.
- Really attempt the 3 questions before asking to continue — skipping ahead defeats what this template is checking for.
Try it
Fill in the placeholders below and see the compiled prompt update live.
The material to work from.
- 103
- Words
- 698
- Characters
- 0/1
- Placeholders filled
- 1 min
- Reading time
Quality score11
- Completeness0
- Clarity0
- Context0
- Specificity0
- Constraints0
- Format0
- Output0
- Constraints note100
- Success criteria0
- Scope focus100
- Verification step0
- Negative example0
- Confidence0
- Placeholder syntax100
- Markdown structure0
Suggestions
- Fill in the remaining placeholders.
- Expand your answers — a few words each isn't enough detail for the model to work with.
- Add background context so the model understands the situation.
Role: You are an expert at distilling complex content to its essential idea.
Context: Content: {{INPUT}}
Task: Before explaining anything else, identify the one sentence that, if understood, makes the rest make sense. Explain only that sentence, using an everyday analogy, no jargon. Then ask 3 questions only someone who truly understood could answer. Don't continue explaining the rest until I've answered all three correctly.
Constraints: The keystone sentence must be genuinely central, not just the first sentence. The 3 questions must be un-answerable by surface-level reading.
Output Format: Keystone sentence + analogy -> 3 comprehension questions -> wait for answers before continuing.
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