Attribute type mismatch.

Additional Information

For element 'X': For attribute 'Y', expected type is 'Z' and received type is 'A'.
    where Z is either entity/entities or entity/entities/notation and A is either cdata, entity, entities, id, idref, idrefs, name, names, nmtoken, nmtokens, number, numbers, nutoken, nutokens, notation or "Name Group".

Explanation

An element's attribute declared type must match the type expected by the OmniMark program.

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