-er -ey a-a a-b a-c aaa aab aac aae aah aap aar aay ab- aba abb abc abe abh abp abr aby ac- aca acb acc ace ach acp acr acy aea aeb aec aee aeh aep aer aey aha ahb ahc ahe ahh ahp ahr ahy ap- apa apb apc ape aph app apr apy ar- ara arb arc are arh arp arr ary ay- aya ayc aye ayh ayp ayr b-p baa bab bac bae bah bap bar bay bba bbb bbc bbe bbh bbp bbr bby bca bcb bcc bce bch bcp bcr bcy be- bea beb bec bee beh bep ber bey bha bhb bhc bhe bhh bhp bhr bpa bpb bpc bpe bph bpp bpr bpy bra brb bre brh brp brr bry by- bya byc bye byh byp byr c-- caa cab cac cae cah cap car cay cba cbb cbc cbe cbh cbp cbr cby cca ccb ccc cce cch ccp ccr ce- cea ceb cec cee ceh cep cer cey ch- cha chb chc che chh chp chr chy cpa cpb cpc cpe cph cpp cpr cra crb crc cre crh crp crr cry cya cyb cyc cye cyp cyr eaa eab eac eae eah eap ear eba ebb ebc ebe ebh ebp ebr eby ec- eca ecb ecc ece ech ecr eea eeb eec eee eep eer eey eha ehb ehc ehe ehh ehp ehr ep- epa epb epc epe eph epp epr era erb erc ere erh erp err ery eya eyc eye eyp eyr haa hab hac hae hah hap har hay hba hbb hbc hbe hbh hbp hbr hby hca hcb hcc hce hch hcp hcr hcy he- hea heb hec hee heh hep her hey hha hhb hhc hhe hhh hhp hhr hhy hpa hpb hpc hpe hph hpp hpr hpy hr- hra hrb hrc hre hrh hrp hrr hy- hya hyb hyc hye hyh hyp hyr hyy p-p paa pab pac pae pah pap par pay pba pbb pbc pbe pbp pbr pby pca pcb pcc pce pch pcp pcr pea peb pec pee peh pep per pey pha phb phc phe php phr phy ppa ppb ppc ppe pph ppp ppr pra prb prc pre prh prp prr pry py- pya pyb pyc pye pyr ra- raa rab rac rae rah rap rar ray rba rbb rbc rbe rbh rbp rbr rca rcb rcc rce rch rcp rcr re- rea reb rec ree reh rep rer rey rh- rha rhb rhc rhe rhh rhp rhr rpa rpb rpc rpe rph rpp rpr rra rrb rrc rrh rrp rrr ry- rya ryc rye ryr ryy yaa yab yac yae yah yap yar yay ybc ybe ybp ybr yby yca ycc yce ych ycp ycy yea yeb yec yee yeh yep yer yey yha yhc yhe ypa yra yrc yre yrp yyb yyc yye yyy