/usr/include/libkeduvocdocument/ is in libkeduvocdocument-dev 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libkeduvocdocument/KEduVocArticle
/usr/include/libkeduvocdocument/KEduVocConjugation
/usr/include/libkeduvocdocument/KEduVocContainer
/usr/include/libkeduvocdocument/KEduVocDeclension
/usr/include/libkeduvocdocument/KEduVocDocument
/usr/include/libkeduvocdocument/KEduVocExpression
/usr/include/libkeduvocdocument/KEduVocIdentifier
/usr/include/libkeduvocdocument/KEduVocKVTML2Writer
/usr/include/libkeduvocdocument/KEduVocLeitnerBox
/usr/include/libkeduvocdocument/KEduVocLesson
/usr/include/libkeduvocdocument/KEduVocMultipleChoice
/usr/include/libkeduvocdocument/KEduVocPersonalPronoun
/usr/include/libkeduvocdocument/KEduVocText
/usr/include/libkeduvocdocument/KEduVocTranslation
/usr/include/libkeduvocdocument/KEduVocWordFlags
/usr/include/libkeduvocdocument/KEduVocWordtype
/usr/include/libkeduvocdocument/SharedKVTMLFiles
/usr/include/libkeduvocdocument/keduvocarticle.h
/usr/include/libkeduvocdocument/keduvocconjugation.h
/usr/include/libkeduvocdocument/keduvoccontainer.h
/usr/include/libkeduvocdocument/keduvocdeclension.h
/usr/include/libkeduvocdocument/keduvocdocument.h
/usr/include/libkeduvocdocument/keduvocdocument_export.h
/usr/include/libkeduvocdocument/keduvocexpression.h
/usr/include/libkeduvocdocument/keduvocidentifier.h
/usr/include/libkeduvocdocument/keduvockvtml2writer.h
/usr/include/libkeduvocdocument/keduvocleitnerbox.h
/usr/include/libkeduvocdocument/keduvoclesson.h
/usr/include/libkeduvocdocument/keduvocmultiplechoice.h
/usr/include/libkeduvocdocument/keduvocpersonalpronoun.h
/usr/include/libkeduvocdocument/keduvoctext.h
/usr/include/libkeduvocdocument/keduvoctranslation.h
/usr/include/libkeduvocdocument/keduvocwordflags.h
/usr/include/libkeduvocdocument/keduvocwordtype.h
/usr/include/libkeduvocdocument/sharedkvtmlfiles.h