{
  rowidObject: "123",
  firstName: "Bob",
  lastName: "Smith",
    $original: {
      firstName: "John"
				}
}

{
  rowidObject: "123",
  firstName: "Bob",
  lastName: "Smith",
    $original: {
      firstName: "John"
				}
  Address: {     // remove A3 from the matches for A2 in the Address_MTCH table
    item: [
      {
        rowidObject: "A2",
        MATCH: {  
          item: [   // to remove matched child records for A2, specify null
            null
          ],
          $original: {
            item: [{key: {rowid: 'A3'}}] 
          }
        }
      }
    ]
  }
  Telephone: {   // override the matches for the telephone child records
    item:[
      {
        rowid: "T1",
        MERGE: {
          item: [   // to remove merge candidates for T1, specify null
            null,
            null
          ],
          $original: {
            item: [
              {rowid: "T2"},
              {rowid: "T3"}
            ]
          }
        }
      },
      {
        rowid: "T4",
        MERGE: {
          item: [   // to add or override matches, specify matched records
            {rowid: "T2"}
          ],
        $original: {
          item: [
            null
          ]
        }
      }
    ]
  }
}

{
	"firstName": "Sasha",
	"genderCd": ""
}