-er -ey a-a a-t aaa aae aao aap aar aat aax aay aea aee aeo aep aer aet aex aey aoa aoe aoo aop aor aot aox ap- apa ape apo app apr apt apx apy ar- ara are aro arp arr art arx ary at- ata ate ato atp atr att atx ax- axa axe axo axp axr axt axx ay- aya aye ayo ayp ayr ayt ayx eaa eae eao eap ear eat eax eea eee eeo eep eer eet eex eey eo- eoa eoe eoo eop eor eot ep- epa epe epo epp epr ept epx era ere ero erp err ert ery eta ete eto etp etr ett etx ety ex- exa exe exo exp exr ext exx exy eya eye eyo eyp eyr eyt oaa oae oao oap oar oat oax oea oee oeo oep oer oet oex oey oo- ooa ooo oop oor oot oox op- opa ope opo opp opr opt opx opy or- ora ore oro orp orr ort orx ory ot- ota ote oto otp otr ott ox- oxa oxo oxt oxx oxy oya oye oyo p-p paa pae pao pap par pat pax pay pea pee peo pep per pet pex pey poa poe poo pop por pot pox poy ppa ppe ppo ppp ppr ppt ppx pra pre pro prp prr prt prx pry pt- pta pte pto ptp ptr ptt ptx pty pxe pxr pxt py- pya pye pyo pyr pyt pyx ra- raa rae rao rap rar rat rax ray re- rea ree reo rep rer ret rex rey roa roe roo rop ror rot rox roy rpa rpe rpo rpp rpr rpt rpx rra rrp rrr rrt rta rte rto rtp rtr rtt rtx rty rxp rxr ry- rya rye ryo ryr ryy t-x taa tae tao tap tar tat tax tay te- tea tee teo tep ter tet tex tey to- toa toe too top tor tot tox toy tpa tpe tpo tpp tpr tpt tpx tra tre tro trp trr trt trx try tta tte tto ttp ttr ttt ttx tty txe txt tya tye tyo typ tyr tyt xaa xap xar xat xee xep xer xet xex xoa xoo xop xor xot xox xpa xpe xpo xpp xpt xrt xrx xry xtp xtr xtx xty xxo xxp xxx xxy xyp xyr xyy yaa yae yao yap yar yat yax yay yea yee yeo yep yer yet yex yey yoe yoo yop yor yot yox yoy ypa ypo yra yre yro yrp yrt yta yte yto ytp ytr ytt yxa yxe yxy yye yyt yyy