The contents of these files were output by the 'A4DOC' application included with the Alph4 4 software package.

A 'SET' as used by Alpha 4 is a joined table view. Both of the set definitions included here represent joins of the 'RESPONSE' and 'MASTER' database tables. Both sets include 'RESPONSE' as the parent and 'MASTER' as the child database, and both are joined on the 'INT_NO' (interview number) field. For the purposes of data entry, the 'SPANDIAL' set looks up and is indexed by entries in the 'LEXICON' database table, while the 'SPANGRAM' set looks up and is indexed by entries in the 'GRAMMAR' database table.