-er -ey b-p bbb bbc bbe bbh bbn bbo bbp bbr bby bcb bcc bce bch bcn bco bcp bcr bcy be- beb bec bee beh ben beo bep ber bey bhb bhc bhe bhh bho bhp bhr bnb bnc bne bnn bno bnp bnr bob boc boe boh bon boo bop bor boy bpb bpc bpe bph bpn bpo bpp bpr bpy brb bre brh brn bro brp brr bry by- byc bye byh byn byo byp byr c-- cbb cbc cbe cbh cbn cbo cbp cbr cby ccb ccc cce cch ccn cco ccp ccr ce- ceb cec cee ceh cen ceo cep cer cey ch- chb chc che chh chn cho chp chr chy cn- cnb cnc cne cnh cnn cno cnp cnr cny co- cob coc coe coh con coo cop cor coy cpb cpc cpe cph cpn cpo cpp cpr crb crc cre crh crn cro crp crr cry cyb cyc cye cyn cyo cyp cyr ebb ebc ebe ebh ebn ebo ebp ebr eby ec- ecb ecc ece ech ecn eco ecr eeb eec eee een eeo eep eer eey ehb ehc ehe ehh ehn eho ehp ehr en- enb enc ene enh enn eno enp enr eny eo- eob eoc eoe eoh eon eoo eop eor ep- epb epc epe eph epn epo epp epr erb erc ere erh ern ero erp err ery eyc eye eyn eyo eyp eyr hbb hbc hbe hbh hbn hbo hbp hbr hby hcb hcc hce hch hcn hco hcp hcr hcy he- heb hec hee heh hen heo hep her hey hhb hhc hhe hhh hhn hho hhp hhr hhy hnb hnc hne hnh hnn hno hny hob hoc hoe hoh hon hoo hop hor hoy hpb hpc hpe hph hpn hpo hpp hpr hpy hr- hrb hrc hre hrh hrn hro hrp hrr hy- hyb hyc hye hyh hyn hyo hyp hyr hyy nbb nbc nbe nbn nbo nbp nbr ncb ncc nce nch ncn nco ncp ncr ne- neb nec nee neh nen neo nep ner ney nhb nhc nhe nhh nhn nhp nhr nhy nnb nnc nne nnh nnn nno nnp no- nob noc noe noh non noo nop nor noy npb npc npe nph npn npo npp npr nrb nrc nre nrn nro nrp nrr nry nyc nye nyn nyo nyp nyy ob- obb obc obe obh obn obo obp obr oby oc- ocb occ och ocn oco ocp ocr oeb oec oee oeh oen oeo oep oer oey ohc ohe ohh ohn oho ohp ohr on- onb onc one onh onn ono onp onr ony oo- oob ooc ooh oon ooo oop oor op- opb opc ope oph opn opo opp opr opy or- orb orc ore orh orn oro orp orr ory oye oyo p-p pbb pbc pbe pbn pbo pbp pbr pby pcb pcc pce pch pcn pco pcp pcr peb pec pee peh pen peo pep per pey phb phc phe phn pho php phr phy pn- pnb pnc pne pnh pnn pno pnp pnr pny pob poc poe poh pon poo pop por poy ppb ppc ppe pph ppn ppo ppp ppr prb prc pre prh prn pro prp prr pry py- pyb pyc pye pyn pyo pyr rbb rbc rbe rbh rbn rbo rbp rbr rcb rcc rce rch rcn rco rcp rcr re- reb rec ree reh ren reo rep rer rey rh- rhb rhc rhe rhh rhn rho rhp rhr rnb rnc rnh rnn rno rnp rnr rny rob roc roe roh ron roo rop ror roy rpb rpc rpe rph rpn rpo rpp rpr rrb rrc rrh rrn rrp rrr ry- ryc rye ryn ryo ryr ryy ybc ybe ybp ybr yby ycc yce ych yco ycp ycy yeb yec yee yeh yen yeo yep yer yey yhc yhe yne ynn ynp yny yob yoc yoe yon yoo yop yor yoy ypo yrc yre yrn yro yrp yyb yyc yye yyy