-al -ly -ol a-a a-b a-c aaa aab aac aak aal aao aay ab- aba abb abc abk abl abo aby ac- aca acb acc ack acl aco acy aka akb akc akk akl ako al- ala alb alc alk all alo aly aoa aob aoc aok aol aoo ay- aya ayc ayk ayl ayo baa bab bac bak bal bao bay bba bbb bbc bbk bbl bbo bby bca bcb bcc bck bcl bco bcy bka bkb bkc bkk bkl bko bla blb blc blk bll blo bly boa bob boc bok bol boo boy by- bya byc byk byl byo c-- caa cab cac cak cal cao cay cba cbb cbc cbk cbl cbo cby cca ccb ccc cck ccl cco cka ckb ckc cko cky cl- cla clb clc clk cll clo cly co- coa cob coc cok col coo coy cya cyb cyc cyk cyl cyo ka- kaa kab kac kak kal kao kay kba kbb kbc kbk kbl kbo kca kcb kcc kck kcl kkb kkc kkk kkl kky kl- kla klb klc klo kly koa kob koc kok kol koo koy kya kyc kyl kyo la- laa lab lac lak lal lao lay lba lbb lbc lbk lbl lbo lca lcb lcc lck lcl lco lcy lka lkb lkl lky lla llb llc llk lll llo lly loa lob loc lok lol loo loy lya lyc lyk lyl lyo oaa oab oac oak oal oao ob- oba obb obc obk obl obo oby oc- oca ocb occ ock ocl oco oka okb okc okk okl oko ola olb olc olk oll olo oly oo- ooa oob ooc ook ool ooo oya oyl oyo yaa yab yac yak yal yao yay ybc ybl yby yca ycc ycl yco ycy yka ykk ylc ylk yll yly yob yoc yok yol yoo yoy yyb yyc yyy