-ism bbbb bbbs bbeb bebb bebe bebi beeb beem beer bees beim beir beis beme bere beri berm berr bers bes- bese besm bess bibb bibe bibi bibs bieb bier bies biis bims birb bire biri birr birs bis- bise biss bmir bmmi breb bree brei brem brer bres brie brim bris brrm brrr brrs brsb brsr bseb bsee bser bses bsim bsms bsrm bsse bssm ebbr ebbs eber ebes ebis eeee eees eems eers eese eesi eiei eier eies eime eimi eims eire eirs eise eiss embe embi embr embs emer emes emii emim emir emis emme emmi emms emre emrs emse erbb erbe ereb erei erem erer eres erie erim eris erme erms erre errs erse ersi esbs esee esem eser eses esie esis esme esmr esri esse essi i-be ibbm ibes ibie ibim ibis ibms ibri ibss ieie ieme iems iere ieri iers iesi iesr iies iiie iiii iiis iirs iisi iism iisr imbe imbi imer imes imir imme immi imms imre imri imrr imsi imsr imss irbe irbm iree irem irer ires iri- irie iris irms irre irri irrs irse isbe iseb isee iser ises isie isim isis isme ismi isms isri isse issi issr isss mbbs mbes mbim mbis mbms mbrs mebe meem meer mees meir meis meme memr mems mer- merb mere meri merm mers mes- mese mesi mesr mess mibs miee miem mier mies miii miis mim- mime mimi mims mire miri mirr mirs mis- mise misi misr miss mmes mmii mmis mmmm mmms mmse mrbb mrbm mrbs mreb mree mres mris mrse mrsi msee msem msmb msmm msms msrb mssi mssm mssr rbbb rbbr rbbs rbis rbms rbss rebb rebe rebs reeb reem rees reii reim reir reis reme remi rems rere reri rers rese resi ress rib- ribe ribs riem rier ries riis rime rimi rimm rims rire riri rirs rise risi rism riss rmbs rrrr rsbi rsee rsis rsme rsre s-ib s-ii sbbs sber sbse sbsi se-e se-i se-s sebe sebi sebs seeb seem seer sees seie seii seim seir seis seme semi sems serb sere seri serm serr sers sese sesi sess sibe sibi sibs sier sies siim sime simi simm sims sire siri sirr sirs sise sisi siss smbe smeb smee smei smie smis smss sreb srem sres srib srim sris ssbr ssee ssem sses ssis ssri ssrm ssrs sssb sssi sssm ssss