bbbb bbeb bblb bebb bebe bebi beeb beel beer beil beir bele beli bell bere beri berr bibb bibe bibi bibl bieb biel bier bile bili bill birb bire biri birl birr bleb blee blei blir breb bree brei brel brer brie bril brrr ebbr ebel eber ebli eeee eele eiei eier eile eire el-b elbe elbi elee eler elie elil elle elli erbb erbe ereb erei erel erer erie eril erle erli erll erre i-be ibie ible ibri ieie iele iere ieri iiie iiii ile- iler ilie ilir ill- ille illi ilre irbe iree irel irer iri- irie iril irlb irre irri lblr leel leer leib leie leil leir lele leli lell lere libe libr lieb liel lier liii liir lilb lile lili lill lire liri lirl lirr llll lrrr rbbb rbbr rble rebb rebe reeb reel reii reil reir relb rele rell rere reri rib- ribe riel rier rile rill rire riri rlee rrle rrrr