-ly -ol bbb bbc bbk bbl bbo bbs bby bcb bcc bck bcl bco bcs bcy bkb bkc bkk bkl bko bks blb blc blk bll blo bls bly bob boc bok bol boo bos boy bsb bsc bsk bsl bso bss bsy by- byc byk byl byo bys c-- cbb cbc cbk cbl cbo cbs cby ccb ccc cck ccl cco ccs ckb ckc cko cks cky cl- clb clc clk cll clo cls cly co- cob coc cok col coo cos coy csb csc csk csl cso css csy cyb cyc cyk cyl cyo cys kbb kbc kbk kbl kbo kbs kcb kcc kck kcl kcs kkb kkc kkk kkl kks kky kl- klb klc klo kls kly kob koc kok kol koo kos koy ksb ksc ksk ksl kso kss kyc kyl kyo kys lbb lbc lbk lbl lbo lbs lcb lcc lck lcl lco lcs lcy lkb lkl lks lky llb llc llk lll llo lls lly lob loc lok lol loo los loy lsb lsc lsk lsl lso lss lyc lyk lyl lyo lys ob- obb obc obk obl obo obs oby oc- ocb occ ock ocl oco ocs okb okc okk okl oko oks olb olc olk oll olo ols oly oo- oob ooc ook ool ooo oos os- osb osc osk osl oso oss oyl oyo oys sbb sbc sbk sbl sbo sbs sby scb scc sck scl sco scs sk- skb skc skk skl sko sks sky slb slc slk sll slo sls sly sob soc sok sol soo sos soy ss- ssb ssc ssk ssl sso sss sy- syb syc syk syl sys ybc ybl ybs yby ycc ycl yco ycs ycy ykk ylc ylk yll yls yly yob yoc yok yol yoo yos yoy ysb ysc ysk ysl yso yss ysy yyb yyc yys yyy