bound lookup - Both Present or Both Absent Bound Lookup Example Optional [element], Single Occurrence, with Simple Type [inline-ProvinciaOptionalComuneOptional_BothPresentBothAbsent-Provincia] localName is [Provincia] without namespace Optional [element], Single Occurrence, with Simple Type [inline-ProvinciaOptionalComuneOptional_BothPresentBothAbsent-Comune] localName is [Comune] without namespace bound lookup - Both Present or Both Absent Bound Lookup Example