-al -ly -ol a-a a-b a-c aaa aab aac aak aal aao aas aay ab- aba abb abc abk abl abo abs aby ac- aca acb acc ack acl aco acs acy aka akb akc akk akl ako aks al- ala alb alc alk all alo als aly aoa aob aoc aok aol aoo aos as- asa asb asc ask asl aso ass asy ay- aya ayc ayk ayl ayo ays baa bab bac bak bal bao bas bay bba bbb bbc bbk bbl bbo bbs bby bca bcb bcc bck bcl bco bcs bcy bka bkb bkc bkk bkl bko bks bla blb blc blk bll blo bls bly boa bob boc bok bol boo bos boy bsa bsb bsc bsk bsl bso bss bsy by- bya byc byk byl byo bys c-- caa cab cac cak cal cao cas cay cba cbb cbc cbk cbl cbo cbs cby cca ccb ccc cck ccl cco ccs cka ckb ckc cko cks cky cl- cla clb clc clk cll clo cls cly co- coa cob coc cok col coo cos coy csa csb csc csk csl cso css csy cya cyb cyc cyk cyl cyo cys ka- kaa kab kac kak kal kao kas kay kba kbb kbc kbk kbl kbo kbs kca kcb kcc kck kcl kcs kkb kkc kkk kkl kks kky kl- kla klb klc klo kls kly koa kob koc kok kol koo kos koy ksa ksb ksc ksk ksl kso kss kya kyc kyl kyo kys la- laa lab lac lak lal lao las lay lba lbb lbc lbk lbl lbo lbs lca lcb lcc lck lcl lco lcs lcy lka lkb lkl lks lky lla llb llc llk lll llo lls lly loa lob loc lok lol loo los loy lsa lsb lsc lsk lsl lso lss lya lyc lyk lyl lyo lys oaa oab oac oak oal oao oas ob- oba obb obc obk obl obo obs oby oc- oca ocb occ ock ocl oco ocs oka okb okc okk okl oko oks ola olb olc olk oll olo ols oly oo- ooa oob ooc ook ool ooo oos os- osa osb osc osk osl oso oss oya oyl oyo oys saa sab sac sak sal sao sas say sba sbb sbc sbk sbl sbo sbs sby sca scb scc sck scl sco scs sk- ska skb skc skk skl sko sks sky sla slb slc slk sll slo sls sly soa sob soc sok sol soo sos soy ss- ssa ssb ssc ssk ssl sso sss sy- sya syb syc syk syl sys yaa yab yac yak yal yao yas yay ybc ybl ybs yby yca ycc ycl yco ycs ycy yka ykk ylc ylk yll yls yly yob yoc yok yol yoo yos yoy ysa ysb ysc ysk ysl yso yss ysy yyb yyc yys yyy