A textual representation of the syntactical variation described by this entry. If the associated capsConfLevel object is equal to 'otherConf', then this string SHOULD contain the the same value as the SYNTAX clause within a VARIATION clause of an AGENT-CAPABILITIES macro. If the associated capsConfLevel object is equal to 'minConf', and this entry identifies a set of MIB objects, then this string MAY identify the applicable GROUP clause(s) associated with the entry. For all entries in which the associated capsConfLevel object is equal to 'minConf', this string SHOULD contain the same value as the SYNTAX, WRITE-SYNTAX, and/or MIN-ACCESS clauses present within the OBJECT clause of a MODULE-COMPLIANCE macro. The actual keyword (e.g., 'SYNTAX') SHOULD precede the quoted string value. Multiple clauses MAY be concatenated within a single string, and SHOULD be separated by whitespace. If this entry identifies multiple objects, then the same clause(s) must apply to all objects. The agent MAY return a zero-length string instead of a noSuchInstance exception.