def word_sites(word):
sites = map(lambda site: site.domain, word.site.all()[:<NUM_LIT:5>])<EOL>return "<STR_LIT:U+002CU+0020>".join(sites if len(sites) <= <NUM_LIT:5> else sites+["<STR_LIT>"])<EOL>
@returns: the sites, where a Word instance is active,
truncated, so at most 5 sites are displayed