--- a/manpages/buxon.1
+++ b/manpages/buxon.1
@@ -6,6 +6,10 @@
 .SH DESCRIPTION
 \fBbuxon\fP is a RDF sioc:Forum browser, created by the SWAML 
 developers as well and written in PyGTK.
+.PP
+\fBbuxon\fP expects as an input a URI pointing to an RDF file
+containing a representation of a SIOC forum. Typical inputs are
+outputs generated by SWAML.
 .SH AUTHOR
 Manpage written by Nacho Barrientos Arias <chipi@criptonita.com> and
 Sergio Fernandez <sergio@wikier.org> for the Debian GNU/Linux system 
