-er -ey a-a a-b a-i aaa aab aad aae aai aao aap aar aay ab- aba abb abd abe abi abo abp abr aby ad- ada adb add ade adi ado adp adr ady aea aeb aed aee aei aeo aep aer aey ai- aia aib aid aie aii aio aip air aiy aoa aob aod aoe aoi aoo aop aor ap- apa apb apd ape api apo app apr apy ar- ara arb ard are ari aro arp arr ary ay- aya ayd aye ayi ayo ayp ayr b-p baa bab bad bae bai bao bap bar bay bba bbb bbd bbe bbi bbo bbp bbr bby bda bdb bdd bde bdi bdo bdp bdr bdy be- bea beb bed bee bei beo bep ber bey bi- bia bib bid bie bii bio bip bir biy boa bob bod boe boi boo bop bor boy bpa bpb bpd bpe bpi bpo bpp bpr bpy bra brb brd bre bri bro brp brr bry by- bya byd bye byi byo byp byr daa dab dad dae dai dao dap dar day dba dbb dbd dbe dbi dbo dbp dbr dby dda ddb ddd dde ddi ddo ddp ddr ddy de- dea deb ded dee dei deo dep der dey di- dia dib did die dii dio dip dir diy doa dob dod doe doi doo dop dor doy dpa dpb dpd dpe dpi dpo dpp dpr dra drb drd dre dri dro drp drr dry dy- dya dyb dyd dye dyo dyp dyr dyy eaa eab ead eae eai eao eap ear eba ebb ebd ebe ebi ebo ebp ebr eby ed- eda edb edd ede edi edo edp edr edy eea eeb eed eee eeo eep eer eey eia eib eid eie eii eio eip eir eo- eoa eob eod eoe eoi eoo eop eor ep- epa epb epd epe epi epo epp epr era erb erd ere eri ero erp err ery eya eyd eye eyo eyp eyr i-d ia- iaa iab iad iae iai iao iap iar iba ibb ibd ibe ibi ibo ibp ibr iby ida idb idd ide idi ido idp idr idy ie- iea ied iee iei iep ier iey iia iib iid iie iii iio iip iir io- ioa iob iod ioe ioi ioo iop ior ipa ipb ipd ipe ipi ipo ipp ipr ipy ir- ira irb ird ire iri iro irp irr iry iya iye iyo iyr iyy o-i oaa oab oad oae oai oao oap oar ob- oba obb obd obe obi obo obp obr oby oda odb odd ode odi odo odp odr oea oeb oed oee oei oeo oep oer oey oia oib oid oie oii oio oip oir oo- ooa oob ood ooi ooo oop oor op- opa opb opd ope opi opo opp opr opy or- ora orb ord ore ori oro orp orr ory oya oyd oye oyi oyo p-p paa pab pad pae pai pao pap par pay pba pbb pbd pbe pbi pbo pbp pbr pby pda pdb pdd pde pdi pdo pdp pdr pea peb ped pee pei peo pep per pey pia pib pid pie pii pio pip pir poa pob pod poe poi poo pop por poy ppa ppb ppd ppe ppi ppo ppp ppr pra prb prd pre pri pro prp prr pry py- pya pyb pyd pye pyo pyr ra- raa rab rad rae rai rao rap rar ray rba rbb rbd rbe rbi rbo rbp rbr rda rdb rdd rde rdi rdo rdp rdr rdy re- rea reb red ree rei reo rep rer rey ria rib rid rie rii rio rip rir riy roa rob rod roe roi roo rop ror roy rpa rpb rpd rpe rpi rpo rpp rpr rra rrb rrd rri rrp rrr ry- rya ryd rye ryo ryr ryy yaa yab yad yae yai yao yap yar yay ybe ybi ybp ybr yby yda yde ydo ydy yea yeb yed yee yei yeo yep yer yey yid yie yii yio yip yir yob yod yoe yoi yoo yop yor yoy ypa ypd ypo yra yre yro yrp yyb yye yyy