{"database": "openregs", "table": "hearing_witnesses", "rows": [[49555, "CHRG-111jhrg58299", "Dr. Michael Greenstone", "3M Professor of Environmental Economics, MA; Director", "Massachusetts Institute of Technology, Cambridge, The Hamilton Project, The Brookings Institution", "MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE, THE HAMILTON PROJECT, THE BROOKINGS INSTITUTION", "Washington, DC"]], "columns": ["id", "package_id", "name", "title", "organization", "organization_normalized", "location"], "primary_keys": ["id"], "primary_key_values": ["49555"], "units": {}, "query_ms": 0.30678207986056805, "source": "Federal Register API & Regulations.gov API", "source_url": "https://www.federalregister.gov/developers/api/v1", "license": "Public Domain (U.S. Government data)", "license_url": "https://www.regulations.gov/faq"}