-er -ey -ic a-a a-b a-c a-i aaa aab aac aae aai aao aap aar aas aay ab- aba abb abc abe abi abo abp abr abs aby ac- aca acb acc ace aci aco acp acr acs acy aea aeb aec aee aei aeo aep aer aes aey ai- aia aib aic aie aii aio aip air ais aiy aoa aob aoc aoe aoi aoo aop aor aos ap- apa apb apc ape api apo app apr aps apy ar- ara arb arc are ari aro arp arr ars ary as- asa asb asc ase asi aso asp asr ass asy ay- aya ayc aye ayi ayo ayp ayr ays b-p baa bab bac bae bai bao bap bar bas bay bba bbb bbc bbe bbi bbo bbp bbr bbs bby bca bcb bcc bce bci bco bcp bcr bcs bcy be- bea beb bec bee bei beo bep ber bes bey bi- bia bib bic bie bii bio bip bir bis biy boa bob boc boe boi boo bop bor bos boy bpa bpb bpc bpe bpi bpo bpp bpr bps bpy bra brb bre bri bro brp brr brs bry bsa bsb bsc bse bsi bso bsp bsr bss bsy by- bya byc bye byi byo byp byr bys c-- caa cab cac cae cai cao cap car cas cay cba cbb cbc cbe cbi cbo cbp cbr cbs cby cca ccb ccc cce cci cco ccp ccr ccs ce- cea ceb cec cee cei ceo cep cer ces cey ci- cia cib cic cie cii cio cip cir cis co- coa cob coc coe coi coo cop cor cos coy cpa cpb cpc cpe cpi cpo cpp cpr cps cra crb crc cre cri cro crp crr crs cry csa csb csc cse csi cso csp csr css csy cya cyb cyc cye cyo cyp cyr cys eaa eab eac eae eai eao eap ear eas eba ebb ebc ebe ebi ebo ebp ebr ebs eby ec- eca ecb ecc ece eci eco ecr ecs eea eeb eec eee eeo eep eer ees eey eia eib eic eie eii eio eip eir eis eo- eoa eob eoc eoe eoi eoo eop eor eos ep- epa epb epc epe epi epo epp epr eps era erb erc ere eri ero erp err ers ery es- esa esb esc ese esi eso esp esr ess esy eya eyc eye eyo eyp eyr eys ia- iaa iab iac iae iai iao iap iar ias iba ibb ibc ibe ibi ibo ibp ibr ibs iby ica icb icc ice ici ico icp icr ics icy ie- iea iec iee iei iep ier ies iey iia iib iic iie iii iio iip iir iis io- ioa iob ioc ioe ioi ioo iop ior ios ipa ipb ipc ipe ipi ipo ipp ipr ips ipy ir- ira irb irc ire iri iro irp irr irs iry is- isa isb isc ise isi iso isp isr iss isy iya iyc iye iyo iyr iys iyy o-i oaa oab oac oae oai oao oap oar oas ob- oba obb obc obe obi obo obp obr obs oby oc- oca ocb occ oci oco ocp ocr ocs oea oeb oec oee oei oeo oep oer oes oey oia oib oic oie oii oio oip oir ois oo- ooa oob ooc ooi ooo oop oor oos op- opa opb opc ope opi opo opp opr ops opy or- ora orb orc ore ori oro orp orr ors ory os- osa osb osc ose osi oso osp osr oss oya oye oyi oyo oys p-p paa pab pac pae pai pao pap par pas pay pba pbb pbc pbe pbi pbo pbp pbr pbs pby pca pcb pcc pce pci pco pcp pcr pcs pea peb pec pee pei peo pep per pes pey pia pib pic pie pii pio pip pir pis poa pob poc poe poi poo pop por pos poy ppa ppb ppc ppe ppi ppo ppp ppr pps pra prb prc pre pri pro prp prr prs pry ps- psa psb psc pse psi pso psp psr pss psy py- pya pyb pyc pye pyo pyr pys ra- raa rab rac rae rai rao rap rar ras ray rba rbb rbc rbe rbi rbo rbp rbr rbs rca rcb rcc rce rci rco rcp rcr rcs re- rea reb rec ree rei reo rep rer res rey ria rib ric rie rii rio rip rir ris riy roa rob roc roe roi roo rop ror ros roy rpa rpb rpc rpe rpi rpo rpp rpr rps rra rrb rrc rri rrp rrr rrs rsa rsb rsc rse rsi rso rsp rsr rss ry- rya ryc rye ryo ryr rys ryy saa sab sac sae sai sao sap sar sas say sba sbb sbc sbe sbi sbo sbp sbr sbs sby sca scb scc sce sci sco scp scr scs se- sea seb sec see sei seo sep ser ses sey sia sib sic sie sii sio sip sir sis soa sob soc soe soi soo sop sor sos soy spa spb spc spe spi spo spp spr sps spy sr- sra srb src sre sri sro srp srr srs sry ss- ssa ssb ssc sse ssi sso ssp ssr sss sy- sya syb syc sye syi syp syr sys yaa yab yac yae yai yao yap yar yas yay ybc ybe ybi ybp ybr ybs yby yca ycc yce yci yco ycp ycs ycy yea yeb yec yee yei yeo yep yer yes yey yie yii yio yip yir yis yob yoc yoe yoi yoo yop yor yos yoy ypa ypo yps yra yrc yre yro yrp yrs ysa ysb ysc yse ysi yso ysp ysr yss ysy yyb yyc yye yys yyy