[
  {
    "query": "last_seen():+7d",
    "result": [
      {"type": "spaces", "value": ""},
      {
        "type": "filter",
        "filter": "aggregateRelativeDate",
        "negated": false,
        "key": {
          "type": "keyAggregate",
          "name": {"type": "keySimple", "value": "last_seen", "quoted": false},
          "args": null,
          "argsSpaceBefore": {"type": "spaces", "value": ""},
          "argsSpaceAfter": {"type": "spaces", "value": ""}
        },
        "operator": "",
        "value": {
          "type": "valueRelativeDate",
          "value": "7",
          "sign": "+",
          "unit": "d",
          "parsed": {
            "value": "2017-10-24T02:41:20.000Z"
          }
        }
      },
      {"type": "spaces", "value": ""}
    ]
  },
  {
    "query": "last_seen():-2w",
    "result": [
      {"type": "spaces", "value": ""},
      {
        "type": "filter",
        "filter": "aggregateRelativeDate",
        "negated": false,
        "key": {
          "type": "keyAggregate",
          "name": {"type": "keySimple", "value": "last_seen", "quoted": false},
          "args": null,
          "argsSpaceBefore": {"type": "spaces", "value": ""},
          "argsSpaceAfter": {"type": "spaces", "value": ""}
        },
        "operator": "",
        "value": {
          "type": "valueRelativeDate",
          "value": "2",
          "sign": "-",
          "unit": "w",
          "parsed": {
            "value": "2017-10-03T02:41:20.000Z"
          }
        }
      },
      {"type": "spaces", "value": ""}
    ]
  },
  {
    "query": "random:-2w",
    "result": [
      {"type": "spaces", "value": ""},
      {
        "type": "filter",
        "filter": "text",
        "negated": false,
        "key": {"type": "keySimple", "value": "random", "quoted": false},
        "operator": "",
        "value": {"type": "valueText", "value": "-2w", "quoted": false}
      },
      {"type": "spaces", "value": ""}
    ]
  }
]