bbbb bbbs bbdd bbin bd-r bdii bdin bdsd bibb bibi bibs bidi bidr bids biin biis bin- bind bini binn bins birb bird biri birn birr birs bis- bisd biss bnib bnin bnrr bnss brds brid brin bris brns brrr brrs brsb brsr bsbd bsin bsnd bsns bsrd bssd dbrn dbrs dbss dddd ddss dibb dibs didi dids diii diis din- dini dinn dins dird dirr dirs dis- disd disi diss dnis drib drin drrs dsdr dsri dsrr dssi dssn ibid ibis ibns ibrd ibri ibsn ibss idid idin idir idis idss iiii iiis iirs iisd iisi iisr inbd ind- indi inds inid inis inni innr inns inri inrs inss irds iri- irid irin iris irri irrs isbd isbn isdb isdn isds isin isis isri issi issr isss n-ii nddb ndri ndsi ndss nibi nibs nidd nidi nids niir nind nini nins nirs nisd nisi niss nndb nnnn nnss nrds nrrd nsds nsin nsis nsnr nsrd nssb nssr nsss rbbb rbbr rbbs rbds rbis rbsd rbss rib- ribs ridd ridi rids riin riis rind rinn riri rirs risd risi riss rnbr rnds rnin rrrr rsbi rsdd rsds rsid rsis rsnn rsnr s-ib s-ii sbbs sbds sbsd sbsi sdds sdib sdrs sdss sibi sibs sidd sidi sidr sids sind sini sinn sins siri sirr sirs sisd sisi siss snib snid snir snns snrs snsd srib sris srni srnn srsd ssbn ssbr ssdd ssid ssin ssis ssns ssri ssrs sssb sssi ssss