def append(self, entity, name="<STR_LIT>"):
e = map(lambda s: s.lower(), entity.split("<STR_LIT:U+0020>") + [name])<EOL>self.setdefault(e[<NUM_LIT:0>], []).append(e)<EOL>
Appends a named entity to the lexicon,
            e.g., Entities.append("Hooloovoo", "PERS")