-ly -ol bbb bbc bbl bbo bbr bbs bby bcb bcc bcl bco bcr bcs bcy blb blc bll blo blr bls bly bob boc bol boo bor bos boy brb brl bro brr brs bry bsb bsc bsl bso bsr bss bsy by- byc byl byo byr bys c-- cbb cbc cbl cbo cbr cbs cby ccb ccc ccl cco ccr ccs cl- clb clc cll clo clr cls cly co- cob coc col coo cor cos coy crb crc crl cro crr crs cry csb csc csl cso csr css csy cyb cyc cyl cyo cyr cys lbb lbc lbl lbo lbr lbs lcb lcc lcl lco lcr lcs lcy llb llc lll llo llr lls lly lob loc lol loo lor los loy lrb lrc lro lrr lrs lry lsb lsc lsl lso lsr lss lyc lyl lyo lyr lys ob- obb obc obl obo obr obs oby oc- ocb occ ocl oco ocr ocs olb olc oll olo ols oly oo- oob ooc ool ooo oor oos or- orb orc orl oro orr ors ory os- osb osc osl oso osr oss oyl oyo oys rbb rbc rbl rbo rbr rbs rcb rcc rcl rco rcr rcs rlc rll rlo rlr rls rly rob roc rol roo ror ros roy rrb rrc rrl rrr rrs rsb rsc rsl rso rsr rss ry- ryc ryo ryr rys ryy sbb sbc sbl sbo sbr sbs sby scb scc scl sco scr scs slb slc sll slo slr sls sly sob soc sol soo sor sos soy sr- srb src srl sro srr srs sry ss- ssb ssc ssl sso ssr sss sy- syb syc syl syr sys ybc ybl ybr ybs yby ycc ycl yco ycs ycy ylc yll ylr yls yly yob yoc yol yoo yor yos yoy yrc yro yrs ysb ysc ysl yso ysr yss ysy yyb yyc yys yyy