Install libsoprano4 by entering the following commands in the terminal:
sudo apt update sudo apt install libsoprano4
Description:
libraries for the Soprano RDF framework
Soprano is a pluggable RDF storage, parsing, and serialization framework based on Qt 4. Soprano is targeted at desktop applications that need to store RDF data. Its API has been optimized for simplicity and ease of use, while its modular structure allows it to use various different RDF storage implementations as its backend. . This package contains the Soprano core libraries, D-Bus service, parser plugins, and a storage plugin for the Redland RDF Application Framework.
Homepage: http://soprano.sourceforge.net
Version: 2.9.4+dfsg1-0ubuntu4
Section: universe/libs