Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
application()
application(org.kde.umbrello.desktop)
metainfo()
metainfo(org.kde.umbrello.appdata.xml)
mimehandler(application/x-uml)
mimehandler(text/x-xmi)
umbrello
umbrello(x86-32)
umbrello5

Requires :

libKF5Archive.so.5
libKF5Completion.so.5
libKF5ConfigCore.so.5
libKF5ConfigGui.so.5
libKF5ConfigWidgets.so.5
libKF5CoreAddons.so.5
libKF5Crash.so.5
libKF5I18n.so.5
libKF5IconThemes.so.5
libKF5JobWidgets.so.5
libKF5KIOCore.so.5
libKF5KIOWidgets.so.5
libKF5TextEditor.so.5
libKF5TextWidgets.so.5
libKF5WidgetsAddons.so.5
libKF5XmlGui.so.5
libQt5Core.so.5
libQt5Core.so.5(Qt_5)
libQt5Core.so.5(Qt_5.15)
libQt5Gui.so.5
libQt5Gui.so.5(Qt_5)
libQt5PrintSupport.so.5
libQt5PrintSupport.so.5(Qt_5)
libQt5Svg.so.5
libQt5Svg.so.5(Qt_5)
libQt5Widgets.so.5
libQt5Widgets.so.5(Qt_5)
libQt5Xml.so.5
libQt5Xml.so.5(Qt_5)
libc.so.6
libc.so.6(GLIBC_2.0)
libc.so.6(GLIBC_2.1.3)
libc.so.6(GLIBC_2.3.4)
libc.so.6(GLIBC_2.34)
libc.so.6(GLIBC_2.4)
libm.so.6
libm.so.6(GLIBC_2.0)
libm.so.6(GLIBC_2.1)
libstdc++.so.6
libstdc++.so.6(CXXABI_1.3)
libstdc++.so.6(CXXABI_1.3.9)
libstdc++.so.6(GLIBCXX_3.4)
libstdc++.so.6(GLIBCXX_3.4.11)
libstdc++.so.6(GLIBCXX_3.4.21)
libstdc++.so.6(GLIBCXX_3.4.32)
libstdc++.so.6(GLIBCXX_3.4.9)
libxml2.so.2
libxml2.so.2(LIBXML2_2.4.30)
libxslt.so.1
libxslt.so.1(LIBXML2_1.0.11)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1

Content of RPM :
/usr/bin/po2xmi5
/usr/bin/umbrello5
/usr/bin/xmi2pot5
/usr/share/applications/org.kde.umbrello.desktop
/usr/share/doc/HTML/en/umbrello
/usr/share/doc/HTML/en/umbrello/activity-diagram.png
/usr/share/doc/HTML/en/umbrello/aggregation.png
/usr/share/doc/HTML/en/umbrello/apphelp
/usr/share/doc/HTML/en/umbrello/apphelp/index.cache.bz2
/usr/share/doc/HTML/en/umbrello/apphelp/index.docbook
/usr/share/doc/HTML/en/umbrello/association.png
/usr/share/doc/HTML/en/umbrello/authors.docbook
/usr/share/doc/HTML/en/umbrello/auto-layout-settings.png
/usr/share/doc/HTML/en/umbrello/category.png
/usr/share/doc/HTML/en/umbrello/class-diagram.png
/usr/share/doc/HTML/en/umbrello/class-settings.png
/usr/share/doc/HTML/en/umbrello/class.png
/usr/share/doc/HTML/en/umbrello/code-generation-formatting-settings.png
/usr/share/doc/HTML/en/umbrello/code-generation-general-settings.png
/usr/share/doc/HTML/en/umbrello/code-generation-language-general.png
/usr/share/doc/HTML/en/umbrello/code-generation-language-method-settings.png
/usr/share/doc/HTML/en/umbrello/code-import-settings.png
/usr/share/doc/HTML/en/umbrello/code-import.png
/usr/share/doc/HTML/en/umbrello/code-viewer-settings.png
/usr/share/doc/HTML/en/umbrello/code_import_and_generation.docbook
/usr/share/doc/HTML/en/umbrello/collaboration-diagram.png
/usr/share/doc/HTML/en/umbrello/composition.png
/usr/share/doc/HTML/en/umbrello/credits.docbook
/usr/share/doc/HTML/en/umbrello/diagram-font-settings.png
/usr/share/doc/HTML/en/umbrello/disjoint-specialization.png
There is 87 files more in these RPM.