  People are producing more written material then anytime in the history. The
increase is so high that professionals from the various fields are no more able
to cope with this amount of publications. Text mining tools can offer tools to
help them and one of the tools that can aid information retrieval and
information extraction is semantic text annotation. In this report we present
Marvin, a text annotator written in Java, which can be used as a command line
tool and as a Java library. Marvin is able to annotate text using multiple
sources, including WordNet, MetaMap, DBPedia and thesauri represented as SKOS.
