Extract Related Subjects from OCLC MARC XML in OpenRefine

json

[
  {
    "op": "core/multivalued-cell-split",
    "description": "Split multi-valued cells in column results",
    "columnName": "results",
    "keyColumnName": "OCLC_ID",
    "separator": "datafield",
    "mode": "plain"
  },
  {
    "op": "core/row-removal",
    "description": "Remove rows",
    "engineConfig": {
      "facets": [
        {
          "expression": "value",
          "invert": false,
          "selectError": false,
          "omitError": false,
          "name": "results",
          "selectBlank": false,
          "columnName": "results",
          "omitBlank": false,
          "type": "list",
          "selection": [
            {
              "v": {
                "v": ">\n    <",
                "l": ">\n    <"
              }
            }
          ]
        }
      ],
      "mode": "row-based"
    }
  },
  {
    "op": "core/column-split",
    "description": "Split column results by separator",
    "engineConfig": {
      "facets": [],
      "mode": "row-based"
    },
    "columnName": "results",
    "guessCellType": true,
    "removeOriginalColumn": true,
    "mode": "separator",
    "separator": "<subfield",
    "regex": false,
    "maxColumns": 0
  },
  {
    "op": "core/fill-down",
    "description": "Fill down cells in column OCLC_ID",
    "engineConfig": {
      "facets": [],
      "mode": "row-based"
    },
    "columnName": "OCLC_ID"
  },
  {
    "op": "core/column-reorder",
    "description": "Reorder columns",
    "columnNames": [
      "OCLC_ID",
      "results 1",
      "results 2"
    ]
  },
  {
    "op": "core/row-star",
    "description": "Star rows",
    "engineConfig": {
      "facets": [
        {
          "query": "650",
          "name": "results 1",
          "caseSensitive": false,
          "columnName": "results 1",
          "type": "text",
          "mode": "text"
        }
      ],
      "mode": "row-based"
    },
    "starred": true
  },
  {
    "op": "core/row-removal",
    "description": "Remove rows",
    "engineConfig": {
      "facets": [
        {
          "invert": false,
          "expression": "row.starred",
          "selectError": false,
          "omitError": false,
          "selectBlank": false,
          "name": "Starred Rows",
          "omitBlank": false,
          "columnName": "",
          "type": "list",
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ]
        }
      ],
      "mode": "row-based"
    }
  }
]