bbbb bbdd bbeb bbpr bbrg bd-r bdii bebb bebe bebi bede bedi beeb beed beeg beep beer begg begi beir berd bere berg beri berr bibb bibe bibi bide bidi bidr bieb bied bier bigb bigd bige bigg bipp birb bird bire birg biri birr bprd breb bred bree breg brei brep brer brid brie brig brrr dbgp dbpd dddd ddie ddre debe debi dedd dede dedi deeb deed deeg deep deer dege degi deid deie deip deir depe depp depr der- derb dere derg deri derp derr dgeg dgge dibb dibe dibp dide didi dieb died diep dier dige digg digi diii dipe dipp dird dire dirr dper dpie dprg dred dree dreg drei drge drib drie drip ebbr ebed eber ebid edde eddi eddp ede- edei eder edge edie edip eede eeee eerg egbe egee eger eggb egge eggi eggp egir egpb egpd egpe egpi egre egri eid- eide eidi eidr eied eiei eier eige eigg eipr eird eire epee eper epi- epid epie epip eppp eprb eprp erbb erbe erde erdi ereb ered erei erer erg- ergg ergi erie erpe erre gbde gddb gebe gebi gedd gede gedi geed geep geer gege gegg geie geig geir gepe gerb gerd gere geri gggg gibb gibe gidd gide gidi gied gier gige gigg gigi gipe gipi gipp gird gire girg giri girr gper gpgp gpip gprd gprp grbr greb gree greg grep grib grid grie grig grip grrr i-be ibed ibeg ibge ibid ibie ibrd ibri idbe ided idee ider idid idie idig idir idre iedr ieie iere ieri iger igri iide iied iiie iiii ipdi iper ipid ipie ippr ipri irbe irbp irdp ired iree irer iri- irid irie irig irip irpe irre irri pbed pdpr ped- pede pedi peed peep peer pegg peip peir pepd pepe pepi per- perd pere perg peri perp perr pgde pger pgib pibb pibi pide pied piep pier pigb pigg pigp piip pipe pipi pipp pire pirg piri pirr pper ppgi ppib ppid ppie ppig pppd pppp pre- preb pred pree preg prep pri- prid prie prig prii prpd prrd prri rbbb rbbr rdbp rder rebb rebe redd rede redi redr reeb reed reep regd rege regi regr reid reii reir repe repi repp repr rerd rere rerg reri rgbe rgbi rib- ribe ridd ride ridi ried riep rier rige rigg rigi ripd ripe ripi ripp ripr rire riri rpdp rpii rred rrrr