60 email subject lines, ranked by predicted open rate

Generate 60 email subject lines for {{campaign_type}} promoting {{product_name}} to {{target_audience}}. EMAIL CONTENT SUMMARY: {{email_content}}. DESIRED OUTCOME: {{desired_outcome}}. TONE: {{tone}}. Create 6 variations for each of these 10 formulas: (1) CURIORITY GAP: The truth about... / What [authority] knows... (2) URGENCY/SCARCITY: Countdown, limited spots, deadline-driven. (3) HOW-TO PROMISE: How to [result] in [timeframe]. (4) QUESTION: Open-ended questions that trigger curiosity. (5) LIST/NUMBER: [X] ways to... / The top [X]... (6) PERSONAL/STORY: First-person narrative hooks. (7) DIRECT BENEFIT: Clear outcome-driven lines. (8) CONTROVERSIAL/CONTRARIAN: Challenge common beliefs. (9) EXCLUSIVE/INSIDER: For [audience] only / Inside: [benefit]. (10) EMOTIONAL TRIGGER: Fear, excitement, relief, or FOMO-driven. For EACH subject line, include: Character count, Preview text suggestion (pairing), Predicted performance tier (High/Medium/Low), Best use case (welcome, promo, nurture, re-engagement), and Emojis suggestions if appropriate. Also provide: 10 RE: and FWD: style subject lines for follow-ups, 5 plain-text friendly subject lines that look personal, and 5 from the CEO authority subject lines. Flag any that might trigger spam filters.