A Data Structure Name entry (positions 7-12 of an input specification) is not valid. It is longer than 6 characters, OR the first character is not alphabetic, OR it is not right-justified, OR it contains embedded blanks, OR it contains special characters, OR it has been previously defined as a named constant or as a look-ahead field.
Specify a valid Data Structure Name entry (positions 7-12). Compile again.
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