a-a a-b a-c aaa aab aac aag aah aap aar aay ab- aba abb abc abg abh abp abr aby ac- aca acb acc acg ach acp acr acy ag- aga agb agc agg agh agp agr agy aha ahb ahc ahg ahh ahp ahr ahy ap- apa apb apc apg aph app apr apy ar- ara arb arc arg arh arp arr ary ay- aya ayc ayh ayp ayr b-p baa bab bac bag bah bap bar bay bba bbb bbc bbg bbh bbp bbr bby bca bcb bcc bcg bch bcp bcr bcy bga bgb bgc bgg bgh bgp bgr bha bhb bhc bhg bhh bhp bhr bpa bpb bpc bpg bph bpp bpr bpy bra brb brg brh brp brr bry by- bya byc byg byh byp byr c-- caa cab cac cag cah cap car cay cba cbb cbc cbg cbh cbp cbr cby cca ccb ccc ccg cch ccp ccr cga cgb cgc cgg cgh cgp cgr cgy ch- cha chb chc chg chh chp chr chy cpa cpb cpc cpg cph cpp cpr cra crb crc crg crh crp crr cry cya cyb cyc cyg cyp cyr g-p gaa gab gac gag gah gap gar gay gba gbc gbg gbh gbp gbr gby gca gcb gcc gcg gch gcp gcr gga ggb ggc ggg ggh ggp ggr gha ghb ghc ghg ghh ghp ghr gpa gpb gpc gpg gph gpp gpr gra grb grc grg grh grp grr gry gy- gya gyb gyp gyr haa hab hac hag hah hap har hay hba hbb hbc hbg hbh hbp hbr hby hca hcb hcc hcg hch hcp hcr hcy hga hgb hgc hgg hgh hgp hgr hgy hha hhb hhc hhg hhh hhp hhr hhy hpa hpb hpc hpg hph hpp hpr hpy hr- hra hrb hrc hrg hrh hrp hrr hy- hya hyb hyc hyg hyh hyp hyr hyy p-p paa pab pac pag pah pap par pay pba pbb pbc pbg pbp pbr pby pca pcb pcc pcg pch pcp pcr pga pgb pgc pgg pgh pgp pgr pgy pha phb phc phg php phr phy ppa ppb ppc ppg pph ppp ppr pra prb prc prg prh prp prr pry py- pya pyb pyc pyg pyr ra- raa rab rac rag rah rap rar ray rba rbb rbc rbg rbh rbp rbr rca rcb rcc rcg rch rcp rcr rga rgb rgc rgg rgh rgp rgr rh- rha rhb rhc rhg rhh rhp rhr rpa rpb rpc rpg rph rpp rpr rra rrb rrc rrg rrh rrp rrr ry- rya ryc ryg ryr ryy yaa yab yac yag yah yap yar yay ybc ybg ybp ybr yby yca ycc ych ycp ycy yga ygc yha yhc ypa ypg yra yrc yrg yrp yyb yyc yyg yyy