The Erection of Mental Fences (Delimiters)

Fencing works differently here because Perplexity is never reading only your text - it searches at the same time. So the useful fence is not instruction-versus-data but mine-versus-found: ask for one clearly labelled section drawn strictly from the text you pasted, and a second drawn from search with citations. That split is something the other three cannot give you, and it turns a summarisation task into a fact-check.

• Split the answer into 'from my text' and 'from search'.
• Demand a citation and a date for every found claim.
• Pick the focus mode per question: Academic or Web.
• Ask where sources disagree, not for an average.
• Save the research to a Space, then write elsewhere.

Delimiters matter less here, because Perplexity is not really reading only what you paste - it searches alongside it. Paste a long article and ask for a summary and you get a summary coloured by the web. So use the fences for the opposite purpose: to mark which claims came from my document and which came from your search.

I am studying the Asian semiconductor industry. Answer in two clearly separated sections.

SECTION A - FROM MY TEXT ONLY
I will paste a 2000-word article below the line. Summarise its economic argument in three bullet points, maximum 30 words each: supply chains, capital expenditure, pricing, employment, trade policy. Do not add anything from search in this section. If the article does not support a point, leave it out.

SECTION B - FROM SEARCH, CITED
1. Which of the article's economic claims still hold, and which have been overtaken? Cite a source and a date for each verdict.
2. What has moved most in Asian semiconductor capacity, export controls and fab investment since the article's apparent date?
3. What does India's semiconductor mission look like against this backdrop, and what are the most recent reported figures and timelines? Cite each.
4. Where do credible sources disagree with each other about the outlook? Name the disagreement rather than averaging it.

Use Academic focus for anything on capacity and investment research, Web for policy and news. Flag any claim you could only source to a single outlet.

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[Paste the 2000-word article about the semiconductor industry in Asia]

Do not ask Perplexity to write the warm client email - persona writing with a fixed format is not what it is for, and it will cite sources inside a letter to Anjali. Use it to establish the facts a Kerala itinerary stands on, then write the email in ChatGPT, Claude or Gemini.

I am planning a 7-day Kerala trip for two in December: Munnar tea gardens and Kumarakom backwaters, total budget ₹1,50,000, no strenuous walking or trekking at all. Research this with sources and dates:

1. What are current December rates for mid-range tea-estate stays in Munnar and backwater properties and houseboats in Kumarakom? Give ranges and cite the sources. Note how far ahead December availability typically goes.
2. Is ₹1,50,000 for two people for 7 days realistic in December peak season, once Kochi transfers and inter-town travel are counted? Show the arithmetic against the rates you found.
3. Which Munnar and Kumarakom experiences are genuinely accessible without a climb or a long walk - drive-up viewpoints, boat rides, estate tours with vehicle access? Cite accessibility detail where travel sources state it, and say where they are silent.
4. What is December weather actually like in Munnar and Kumarakom - rainfall, temperature, the tail of the north-east monsoon? Cite the data, not travel-blog impressions.
5. What are the most commonly reported traps for December Kerala bookings - houseboat quality, peak surcharges, Munnar traffic on weekends? Cite recent accounts with dates.

Save all of this to a Space called "Kerala December". Then I will take the findings into a writing tool to draft Anjali's email.

Flag clearly anything where you can only find one source, or where pricing information looks older than this year.

Feature-to-benefit copywriting is a generation task - the few-shot pattern belongs in another tool. What Perplexity can do, and the others cannot do reliably, is show you how real companies word this exact claim, with the pages cited. That is better raw material than an invented example.

I am writing benefit copy for a laptop with a carbon-fibre chassis, selling into the Indian market.

1. How do laptop manufacturers currently describe carbon-fibre or magnesium-alloy chassis on their own product pages? Quote the actual phrasing and cite each page. I want the real wording, not a paraphrase.
2. What verifiable claims does a carbon-fibre chassis support - weight against aluminium, stiffness, durability ratings, thermal behaviour? Cite technical sources, and separate what is measured from what is marketing.
3. Which of these claims have been challenged or debunked by reviewers? Cite the reviews.
4. What do Indian laptop buyers actually say they care about in reviews and forums - weight for commuting, build survival, heat, service network? Cite what you find, with dates.
5. Are there advertising-standards constraints in India on durability or "military-grade" claims in electronics marketing? Cite the rule if one exists.

Give me the sourced phrasing and the verified claim set. I will write the three benefit lines in another tool, using your quotes in point 1 as the examples to beat rather than ones I made up.