(2a) if el and er have the same name or the same set
of synonymous then compare their context;
(2b) if el and er have two distinct names and two dis-
tinct sets of synonymous then their similarity is mea-
sured in order to look if they are synonymous (i.e. their
similarity is judged enough). If it is the case then we
compare their context;
(2c) if el and er have two distinct names and two dis-
tinct sets of synonymous then measure their similarity
to see if they are synonymous. If its not the case (i.e.
their similarity is not judged enough) we deduct that
el and er are disjoint (dissimilar link).