To clarify the context for recognizing names and associating
       values with those names, you can qualify field names with several
       optional elements:

       o  Context variables

          Distinguish between fields in different record streams.

       o  Collection names

          Distinguish between fields in selected records in different
          collections. You can use a collection name to modify a field
          from a selected record only.

       o  Domain names

          Distinguish between fields that have the same field name but
          are associated with different domains.

       o  Record names

          Distinguish between fields that have the same field name but
          are contained in different records.

       o  Group field names

          Distinguish between fields that have the same field name but
          are contained in different group fields.

       Use the following format to specify field names:

       [ collection-name  ]
       [ context-variable ][domain-name] [group-field-name] [...] field-
       [                  ]
       name

       For duplicate field names, you must specify whatever option or
       combination of options is needed to make the name unique.