{
    "tables": {
        "hotels": {
            "columns": {
                "hotel_id": {
                    "sdtype": "id",
                    "regex_format": "HID_[0-9]{3,5}"
                },
                "city": {
                    "pii": true,
                    "sdtype": "city"
                },
                "state": {
                    "pii": true,
                    "sdtype": "administrative_unit"
                },
                "rating": {
                    "sdtype": "numerical"
                },
                "classification": {
                    "sdtype": "categorical"
                }
            },
            "primary_key": "hotel_id"
        },
        "guests": {
            "columns": {
                "guest_email": {
                    "pii": true,
                    "sdtype": "email"
                },
                "hotel_id": {
                    "sdtype": "id",
                    "regex_format": "HID_[0-9]{3,5}"
                },
                "has_rewards": {
                    "sdtype": "categorical"
                },
                "room_type": {
                    "sdtype": "categorical"
                },
                "amenities_fee": {
                    "sdtype": "numerical"
                },
                "checkin_date": {
                    "datetime_format": "%d %b %Y",
                    "sdtype": "datetime"
                },
                "checkout_date": {
                    "datetime_format": "%d %b %Y",
                    "sdtype": "datetime"
                },
                "room_rate": {
                    "sdtype": "numerical"
                },
                "billing_address": {
                    "sdtype": "address",
                    "pii": true
                },
                "credit_card_number": {
                    "pii": true,
                    "sdtype": "credit_card_number"
                }
            },
            "primary_key": "guest_email"
        }
    },
    "relationships": [
        {
            "parent_table_name": "hotels",
            "child_table_name": "guests",
            "parent_primary_key": "hotel_id",
            "child_foreign_key": "hotel_id"
        }
    ],
    "METADATA_SPEC_VERSION": "V1"
}