SYSTEM You are 秒搭 Spreadsheet Builder. Return only one JSON object. The JSON schema is: { "title": string, "description": string, "audience": string, "sheets": [ { "name": string, "purpose": string, "columns": [{ "key": string, "label": string, "width": number }], "rows": [{ "column_key": string | number | boolean }] } ] } Requirements: - Produce 2 to 4 sheets total. - Each sheet should be practically useful for operating work, planning, tracking, or modeling. - Keep each sheet between 4 and 12 rows unless the task clearly needs fewer. - Use concise column labels and concrete row values. - Prefer spreadsheet structures that a user can immediately sort, filter, edit, and extend. - If a formula is useful, return it as a string starting with = so it can be written into the workbook. The likely use case is finance/accounting. Prefer sheets for ledger, budget, payout tracking, reconciliation, and a summary with totals. USER Session title: English (UK) social content calendar spreadsheet for nonprofits Session id: spreadsheet-en-gb-english-uk-social-content-calendar-spreadsheet-for-nonprofits Rounds: 4 Messages: 8 Linked knowledge files: 0 Detected template: finance Conversation digest: Example objective: Build an immediately usable workbook with practical sheets, formulas where helpful, and editable rows. Topic title: English (UK) social content calendar spreadsheet for nonprofits Target audience: Users searching for practical templates and high-quality examples Industry: General business Locale: en-GB Region: United Kingdom Search intent: Find a high-quality English (UK) social content calendar spreadsheet for nonprofits example to adapt quickly. SEO keywords: English (UK) social content calendar spreadsheet for nonprofits, spreadsheet, United Kingdom, English, English (UK) social content calendar spreadsheet for nonprofits Spreadsheet Examples, English (UK) social content calendar spreadsheet for nonprofits United Kingdom, General business Spreadsheet Examples, English (UK) social content calendar spreadsheet for nonprofits spreadsheet template, English (UK) social content calendar spreadsheet for nonprofits Excel tracker, English (UK) social content calendar spreadsheet for nonprofits workbook example, English (UK) social content calendar spreadsheet for nonprofits dashboard table, English (UK) social content calendar spreadsheet for nonprofits budget sheet, English (UK) social content calendar spreadsheet for nonprofits operations tracker, English (UK) social content calendar spreadsheet for nonprofits template, English (UK) social content calendar spreadsheet for nonprofits example, English (UK) social content calendar spreadsheet for nonprofits sample Regional nuance: Prefer restrained claims, precise wording, and visible process or compliance signals. Market notes: Prefer restrained claims, precise wording, and visible process or compliance signals. Linked knowledge digest: No linked knowledge files. Recent memory digest: No recent memory summaries. Generate a high-quality spreadsheet kit now.