-er -ey b-p bbb bbc bbe bbo bbp bbr bby bcb bcc bce bco bcp bcr bcy be- beb bec bee beo bep ber bey bob boc boe boo bop bor boy bpb bpc bpe bpo bpp bpr bpy brb bre bro brp brr bry by- byc bye byo byp byr c-- cbb cbc cbe cbo cbp cbr cby ccb ccc cce cco ccp ccr ce- ceb cec cee ceo cep cer cey co- cob coc coe coo cop cor coy cpb cpc cpe cpo cpp cpr crb crc cre cro crp crr cry cyb cyc cye cyo cyp cyr ebb ebc ebe ebo ebp ebr eby ec- ecb ecc ece eco ecr eeb eec eee eeo eep eer eey eo- eob eoc eoe eoo eop eor ep- epb epc epe epo epp epr erb erc ere ero erp err ery eyc eye eyo eyp eyr ob- obb obc obe obo obp obr oby oc- ocb occ oco ocp ocr oeb oec oee oeo oep oer oey oo- oob ooc ooo oop oor op- opb opc ope opo opp opr opy or- orb orc ore oro orp orr ory oye oyo p-p pbb pbc pbe pbo pbp pbr pby pcb pcc pce pco pcp pcr peb pec pee peo pep per pey pob poc poe poo pop por poy ppb ppc ppe ppo ppp ppr prb prc pre pro prp prr pry py- pyb pyc pye pyo pyr rbb rbc rbe rbo rbp rbr rcb rcc rce rco rcp rcr re- reb rec ree reo rep rer rey rob roc roe roo rop ror roy rpb rpc rpe rpo rpp rpr rrb rrc rrp rrr ry- ryc rye ryo ryr ryy ybc ybe ybp ybr yby ycc yce yco ycp ycy yeb yec yee yeo yep yer yey yob yoc yoe yoo yop yor yoy ypo yrc yre yro yrp yyb yyc yye yyy