-er -ey b-p bbb bbc bbe bbh bbo bbp bbr bby bcb bcc bce bch bco bcp bcr bcy be- beb bec bee beh beo bep ber bey bhb bhc bhe bhh bho bhp bhr bob boc boe boh boo bop bor boy bpb bpc bpe bph bpo bpp bpr bpy brb bre brh bro brp brr bry by- byc bye byh byo byp byr c-- cbb cbc cbe cbh cbo cbp cbr cby ccb ccc cce cch cco ccp ccr ce- ceb cec cee ceh ceo cep cer cey ch- chb chc che chh cho chp chr chy co- cob coc coe coh coo cop cor coy cpb cpc cpe cph cpo cpp cpr crb crc cre crh cro crp crr cry cyb cyc cye cyo cyp cyr ebb ebc ebe ebh ebo ebp ebr eby ec- ecb ecc ece ech eco ecr eeb eec eee eeo eep eer eey ehb ehc ehe ehh eho ehp ehr eo- eob eoc eoe eoh eoo eop eor ep- epb epc epe eph epo epp epr erb erc ere erh ero erp err ery eyc eye eyo eyp eyr hbb hbc hbe hbh hbo hbp hbr hby hcb hcc hce hch hco hcp hcr hcy he- heb hec hee heh heo hep her hey hhb hhc hhe hhh hho hhp hhr hhy hob hoc hoe hoh hoo hop hor hoy hpb hpc hpe hph hpo hpp hpr hpy hr- hrb hrc hre hrh hro hrp hrr hy- hyb hyc hye hyh hyo hyp hyr hyy ob- obb obc obe obh obo obp obr oby oc- ocb occ och oco ocp ocr oeb oec oee oeh oeo oep oer oey ohc ohe ohh oho ohp ohr oo- oob ooc ooh ooo oop oor op- opb opc ope oph opo opp opr opy or- orb orc ore orh oro orp orr ory oye oyo p-p pbb pbc pbe pbo pbp pbr pby pcb pcc pce pch pco pcp pcr peb pec pee peh peo pep per pey phb phc phe pho php phr phy pob poc poe poh poo pop por poy ppb ppc ppe pph ppo ppp ppr prb prc pre prh pro prp prr pry py- pyb pyc pye pyo pyr rbb rbc rbe rbh rbo rbp rbr rcb rcc rce rch rco rcp rcr re- reb rec ree reh reo rep rer rey rh- rhb rhc rhe rhh rho rhp rhr rob roc roe roh roo rop ror roy rpb rpc rpe rph rpo rpp rpr rrb rrc rrh rrp rrr ry- ryc rye ryo ryr ryy ybc ybe ybp ybr yby ycc yce ych yco ycp ycy yeb yec yee yeh yeo yep yer yey yhc yhe yob yoc yoe yoo yop yor yoy ypo yrc yre yro yrp yyb yyc yye yyy