a-a a-b aaa aab aag aan aao aap aas aay ab- aba abb abg abn abo abp abs aby ag- aga agb agg agn ago agp ags agy an- ana anb ang ann ano anp ans any aoa aob aog aon aoo aop aos ap- apa apb apg apn apo app aps apy as- asa asb asg asn aso asp ass asy ay- aya ayn ayo ayp ays b-p baa bab bag ban bao bap bas bay bba bbb bbg bbn bbo bbp bbs bby bga bgb bgg bgn bgo bgp bgs bna bnb bng bnn bno bnp bns boa bob bog bon boo bop bos boy bpa bpb bpg bpn bpo bpp bps bpy bsa bsb bsg bsn bso bsp bss bsy by- bya byg byn byo byp bys g-p gaa gab gag gan gao gap gas gay gba gbg gbn gbo gbp gbs gby gga ggb ggg ggn ggo ggp ggs gna gnb gnn gno gnp gns goa gob gog gon goo gop gos goy gpa gpb gpg gpn gpo gpp gps gsa gsb gsg gsn gso gsp gss gy- gya gyb gyn gyo gyp gys naa nab nag nan nao nap nas nay nba nbb nbg nbn nbo nbp nbs nga ngb ngg ngn ngo ngp ngs nna nnb nng nnn nno nnp nns no- noa nob nog non noo nop nos noy npa npb npg npn npo npp nps nsa nsb nsg nsn nso nsp nss nsy nya nyg nyn nyo nyp nys nyy oaa oab oag oan oao oap oas ob- oba obb obg obn obo obp obs oby oga ogg ogn ogo ogp ogs ogy on- ona onb ong onn ono onp ons ony oo- ooa oob oog oon ooo oop oos op- opa opb opg opn opo opp ops opy os- osa osb osg osn oso osp oss oya oyo oys p-p paa pab pag pan pao pap pas pay pba pbb pbg pbn pbo pbp pbs pby pga pgb pgg pgn pgo pgp pgs pgy pn- pna pnb png pnn pno pnp pns pny poa pob pog pon poo pop pos poy ppa ppb ppg ppn ppo ppp pps ps- psa psb psg psn pso psp pss psy py- pya pyb pyg pyn pyo pys saa sab sag san sao sap sas say sba sbb sbg sbn sbo sbp sbs sby sga sgb sgg sgn sgo sgp sgs sna snb sng snn sno snp sns sny soa sob sog son soo sop sos soy spa spb spg spn spo spp sps spy ss- ssa ssb ssg ssn sso ssp sss sy- sya syb syg syn syp sys yaa yab yag yan yao yap yas yay ybg ybp ybs yby yga ygo yna yng ynn ynp yns yny yob yog yon yoo yop yos yoy ypa ypg ypo yps ysa ysb ysg yso ysp yss ysy yyb yyg yys yyy