bbbb bbbs bbdd bbhs bd-r bddh bdhs bdii bdsd bhhs bhir bhit bhrt bibb bibi bibs bidi bidr bids bihi bihs biis birb bird biri birr birs birt bis- bisd bish biss bist bitd bith bits bitt brds brdt brhs brid brih bris brit brrr brrs brsb brsr brst bsbd bshs bsrd bssd bsts btdt bths btrt btss bttb dbhs dbit dbrs dbss dbtt dddd ddss ddts dhis dibb dibs didi dids diii diis dird dirr dirs dirt dis- disd dish disi diss dist dith diti dits ditt drhs drib drih drit drrs dsdr dshs dsri dsrr dssi dsst dsts dthd dtss h-ii hbbs hbds hbhs hbit hbrs hbss hdhs hdri hdss hdtt hhds hhhh hhhs hibi hibt hidi hids hihi hiht hiis hiit hird hiri hirs hirt hisb hisd hish hiss hist hiti hits hitt hrhs hrib hrid hrit hrtb hshs hsts hths httr ibid ibis ibrd ibri ibss ibtb ibts idid idir idis idss idts ihdr ihis ihit ihrd ihss iiht iiii iiis iiit iirs iisd iisi iisr iist iitr iitt irds irhs iri- irid iris irri irrs irti irts isbd isbt isdb isds ishi ishr ishs isis isit isri issh issi issr isss istd isth isti istr ists itbs iths itis itri itrs itsi rbbb rbbr rbbs rbds rbhs rbis rbsd rbss rbst rdhs rhhs rhib rib- ribs ridd ridi rids rihs riht riis riri rirs risd rish risi riss rist rith riti rits ritt rrhs rrrr rsbi rsdd rsds rshd rshs rsid rsis rsts rtdt rths rtss rtts s-ib s-ii sbbs sbds sbhs sbsd sbsi sbst sdds sdhb sdhd sdhs sdib sdrs sdss shbs shbt shhh shhs shib shid shih shii shir shis shit shri shrs shts sibi sibs sidd sidh sidi sidr sids sihi sihr sihs siht siit siri sirr sirs sirt sisd sish sisi siss sist sit- sitd sith siti sits sitt srhs srib sris srsd srtr ssbr ssdd sshs ssid ssis ssit ssri ssrs sssb sssh sssi ssss sstb sstd ssth ssts stbd stbs stds sths stib stid stih stir stis stit strd stri strs stsi stss sttd sttr tbbs tbhs tbit tbrb tbst tddb tdhs tdis tdri tdss thbs thdr thds thi- thir this thri thsd thsr thss thtb thtr thts tibi tibs tidd tids tiht tiit tirb tird tiri tirr tirs tisb tish tisi tiss tist tith titi tits titt trhs tri- trib tris trit trsd trsi trst trtr tsbd tsdb tshb tshi tshs tsid tsis tssi tssr tsst tsts ttbb ttss tttt