/usr/include/ is in libkf5templateparser-dev 4:17.12.3-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/
/usr/include/KF5/TemplateParser/
/usr/include/KF5/TemplateParser/CustomTemplates
/usr/include/KF5/TemplateParser/CustomTemplatesMenu
/usr/include/KF5/TemplateParser/DefaultTemplates
/usr/include/KF5/TemplateParser/TemplateParserEmailAddressRequesterBase
/usr/include/KF5/TemplateParser/TemplateParserExtractHtmlInfoResult
/usr/include/KF5/TemplateParser/TemplateParserJob
/usr/include/KF5/TemplateParser/TemplatesConfiguration
/usr/include/KF5/TemplateParser/TemplatesInsertCommand
/usr/include/KF5/TemplateParser/TemplatesTextEdit
/usr/include/KF5/TemplateParser/TemplatesUtil
/usr/include/KF5/templateparser/
/usr/include/KF5/templateparser/customtemplates.h
/usr/include/KF5/templateparser/customtemplates_kfg.h
/usr/include/KF5/templateparser/customtemplatesmenu.h
/usr/include/KF5/templateparser/defaulttemplates.h
/usr/include/KF5/templateparser/globalsettings_templateparser.h
/usr/include/KF5/templateparser/templateparser_export.h
/usr/include/KF5/templateparser/templateparseremailaddressrequesterbase.h
/usr/include/KF5/templateparser/templateparserextracthtmlinforesult.h
/usr/include/KF5/templateparser/templateparserjob.h
/usr/include/KF5/templateparser/templatesconfiguration.h
/usr/include/KF5/templateparser/templatesconfiguration_kfg.h
/usr/include/KF5/templateparser/templatesinsertcommand.h
/usr/include/KF5/templateparser/templatestextedit.h
/usr/include/KF5/templateparser/templatesutil.h
/usr/include/KF5/templateparser/ui_templatesconfiguration_base.h
/usr/include/KF5/templateparser_version.h