{"task": {"agent_timeout": 600, "task": "dacode-di-text-001", "verifier_timeout": 600, "instruction": "All input files are under `/app`. Save your output file(s) under `/app/output`.\n\nUse the mean to fill in missing values, then identify the countries with the highest and lowest population densities in the dataset. Please output the answers below in JSON format by filling in the placeholders in:\n'''\n{\n  \"highest country\": [...],\n  \"lowest country\": [...]\n}\n'''\nSave the json answer in `/app/output/answer.json`.", "memory": "4096m", "runnable": false, "difficulty": "medium", "language": "", "cpus": 1, "instruction_truncated": false, "category": "data-science", "compose": false, "has_solution": true, "oracle": null, "docker_image": "", "taskset": "dacode", "tags": ["data-processing", "coding", "di", "di-text"]}, "runs": []}