{
  "type": "object",
  "required": [
    "buyer_name",
    "reference_number",
    "submission_deadline",
    "currency",
    "estimated_budget"
  ],
  "properties": {
    "buyer_name": { "type": "string" },
    "reference_number": { "type": "string" },
    "submission_deadline": { "type": "string", "format": "date-time" },
    "currency": { "type": "string" },
    "estimated_budget": { "type": "number" },
    "initial_term_years": { "type": "integer" },
    "eligibility": {
      "type": "object",
      "properties": {
        "minimum_years_in_business": { "type": "integer" },
        "insurance_required": { "type": "boolean" }
      }
    }
  }
}