{
    "success": true,
    "response": "```json{  'leverage': true,  'derivatives': true,  'swaps': true,  'inverse': false,  'replication_method': 'synthetic',  'ucits': true,  'type': 'ETF',  'complex_factors': [    'Swap usage for replication',    'Counterparty risk',    'Embedded leverage from derivatives',    'Indirect replication structure'  ],  'classification': 'complex',  'supporting_data': 'The Amundi EUR Overnight Return UCITS ETF Acc is classified as complex due to its explicit use of over-the-counter total return swaps (FDI) for indirect replication to achieve its investment objective. This is an integral use of derivatives, not merely for efficient portfolio management. The Key Investor Information Document (KID) clearly states this replication method and highlights associated risks such as 'Counterparty risk' and 'Risk related to the use of derivative instruments', which includes 'leverage risks'. According to the provided MiFID II complexity assessment rules, an ETF is complex if derivatives are integral to its investment objective, or if it uses synthetic replication. Furthermore, the instructions explicitly state that 'If any element of ... any Swap usage is identified then the classification must be complex'. While the ETF is UCITS compliant and tracks a relatively simple index, the structural complexity introduced by the swaps and the associated counterparty and leverage risks make the instrument difficult for a retail investor with basic knowledge to fully understand. The low risk category (1/7) in the KID reflects market risk, not structural complexity, and does not override the complexity introduced by the use of swaps.'}```",
    "note": "Response was not in expected JSON format"
}