Good morning, I've made an extension to the DITA-schema called ling and another extension called ling-sod. The first validates fine. But the second gives errors: Description: cos-nonambig: emphasis and emphasis (or elements from their substitution group) violate "Unique Particle Attribution". During validation against this schema, ambiguity would be created for those two particles. However, when I click the error message I'm redirected to another element that doesn't seem to be related to the problem. How to solve this problem? Vriendelijke groet, Ing. Roderik Dernison Programmeur/ontwikkelaar INL * Schatkamer van de Nederlandse Taal Matthias de Vrieshof 2 * Kamer 106a * 2311 BZ Leiden Tel. +31 (0)71 527 2491 * www.inl.nl<http://www.inl.nl/> ________________________________ ---------------------------------------------------------- Aan dit bericht kunnen geen rechten worden ontleend. Het bericht is alleen bestemd voor de geadresseerde. Indien het bericht niet voor u is bestemd, verzoeken wij u dit aan ons te melden en het bericht te verwijderen. This message shall not constitute any obligations. This message is intended solely for the addressee. If you have received this message in error, please inform us and delete the message. ----------------------------------------------------------