{
    "expr": "Account.Order#$o.Product^(ProductID).{ 'Product': `Product Name`, 'Order Index': $o }",
    "dataset": "dataset5",
    "bindings": {},
    "result": [
        {
            "Product": "Cloak",
            "Order Index": 1
        },
        {
            "Product": "Trilby hat",
            "Order Index": 0
        },
        {
            "Product": "Bowler Hat",
            "Order Index": 0
        },
        {
            "Product": "Bowler Hat",
            "Order Index": 1
        }
    ]
}