-er -ey b-p bbb bbc bbe bbh bbo bbp bbr bbs bby bcb bcc bce bch bco bcp bcr bcs bcy be- beb bec bee beh beo bep ber bes bey bhb bhc bhe bhh bho bhp bhr bhs bob boc boe boh boo bop bor bos boy bpb bpc bpe bph bpo bpp bpr bps bpy brb bre brh bro brp brr brs bry bsb bsc bse bsh bso bsp bsr bss bsy by- byc bye byh byo byp byr bys c-- cbb cbc cbe cbh cbo cbp cbr cbs cby ccb ccc cce cch cco ccp ccr ccs ce- ceb cec cee ceh ceo cep cer ces cey ch- chb chc che chh cho chp chr chs chy co- cob coc coe coh coo cop cor cos coy cpb cpc cpe cph cpo cpp cpr cps crb crc cre crh cro crp crr crs cry csb csc cse csh cso csp csr css csy cyb cyc cye cyo cyp cyr cys ebb ebc ebe ebh ebo ebp ebr ebs eby ec- ecb ecc ece ech eco ecr ecs eeb eec eee eeo eep eer ees eey ehb ehc ehe ehh eho ehp ehr ehs eo- eob eoc eoe eoh eoo eop eor eos ep- epb epc epe eph epo epp epr eps erb erc ere erh ero erp err ers ery es- esb esc ese esh eso esp esr ess esy eyc eye eyo eyp eyr eys hbb hbc hbe hbh hbo hbp hbr hbs hby hcb hcc hce hch hco hcp hcr hcs hcy he- heb hec hee heh heo hep her hes hey hhb hhc hhe hhh hho hhp hhr hhs hhy hob hoc hoe hoh hoo hop hor hos hoy hpb hpc hpe hph hpo hpp hpr hps hpy hr- hrb hrc hre hrh hro hrp hrr hrs hsb hsc hse hsh hsp hsr hss hsy hy- hyb hyc hye hyh hyo hyp hyr hys hyy ob- obb obc obe obh obo obp obr obs oby oc- ocb occ och oco ocp ocr ocs oeb oec oee oeh oeo oep oer oes oey ohc ohe ohh oho ohp ohr ohs oo- oob ooc ooh ooo oop oor oos op- opb opc ope oph opo opp opr ops opy or- orb orc ore orh oro orp orr ors ory os- osb osc ose osh oso osp osr oss oye oyo oys p-p pbb pbc pbe pbo pbp pbr pbs pby pcb pcc pce pch pco pcp pcr pcs peb pec pee peh peo pep per pes pey phb phc phe pho php phr phs phy pob poc poe poh poo pop por pos poy ppb ppc ppe pph ppo ppp ppr pps prb prc pre prh pro prp prr prs pry ps- psb psc pse psh pso psp psr pss psy py- pyb pyc pye pyo pyr pys rbb rbc rbe rbh rbo rbp rbr rbs rcb rcc rce rch rco rcp rcr rcs re- reb rec ree reh reo rep rer res rey rh- rhb rhc rhe rhh rho rhp rhr rhs rob roc roe roh roo rop ror ros roy rpb rpc rpe rph rpo rpp rpr rps rrb rrc rrh rrp rrr rrs rsb rsc rse rsh rso rsp rsr rss ry- ryc rye ryo ryr rys ryy sbb sbc sbe sbh sbo sbp sbr sbs sby scb scc sce sch sco scp scr scs se- seb sec see seh seo sep ser ses sey sh- shb shc she shh sho shp shr shs shy sob soc soe soh soo sop sor sos soy spb spc spe sph spo spp spr sps spy sr- srb src sre srh sro srp srr srs sry ss- ssb ssc sse ssh sso ssp ssr sss sy- syb syc sye syh syp syr sys ybc ybe ybp ybr ybs yby ycc yce ych yco ycp ycs ycy yeb yec yee yeh yeo yep yer yes yey yhc yhe yhs yob yoc yoe yoo yop yor yos yoy ypo yps yrc yre yro yrp yrs ysb ysc yse yso ysp ysr yss ysy yyb yyc yye yys yyy