-ic -ol bbb bbc bbi bbl bbm bbo bbr bbt bcb bcc bci bcl bcm bco bcr bct bi- bib bic bii bil bim bio bir bit blb blc bli bll blm blo blr blt bmb bmc bmi bml bmm bmo bmr bmt bob boc boi bol bom boo bor bot brb bri brl brm bro brr brt btb btc bti btl btm bto btr btt c-- cbb cbc cbi cbl cbm cbo cbr cbt ccb ccc cci ccl ccm cco ccr cct ci- cib cic cii cil cim cio cir cit cl- clb clc cli cll clm clo clr clt cmb cmc cmi cml cmm cmo cmr cmt co- cob coc coi col com coo cor cot crb crc cri crl crm cro crr crt ctb ctc cti ctl ctm cto ctr ctt ibb ibc ibi ibl ibm ibo ibr ibt icb icc ici icl icm ico icr ict iib iic iii iil iim iio iir iit il- ilb ilc ili ill ilm ilo ilr ilt im- imb imc imi iml imm imo imt io- iob ioc ioi iol iom ioo ior iot ir- irb irc iri irl irm iro irr irt itb itc iti itl itm ito itt lbb lbc lbi lbl lbm lbo lbr lbt lcb lcc lci lcl lcm lco lcr lct lib lic lii lil lim lio lir lit llb llc lli lll llm llo llr llt lmb lmc lmi lml lmm lmo lmr lmt lob loc loi lol lom loo lor lot lrb lrc lri lrm lro lrr lrt ltb ltc lti ltl ltm lto ltr ltt m-o m-r mbb mbc mbi mbl mbm mbo mbr mbt mc- mcb mcc mci mcl mcm mco mcr mct mi- mib mic mii mil mim mio mir mit mlb mlc mli mll mlm mlo mlr mlt mmb mmc mmi mml mmm mmo mmr mmt mob moc moi mol mom moo mor mot mrb mrc mri mrl mrm mro mrr mrt mtb mtc mti mtl mtm mto mtr mtt o-i ob- obb obc obi obl obm obo obr obt oc- ocb occ oci ocl ocm oco ocr oct oib oic oii oil oim oio oir oit olb olc oli oll olm olo olt om- omb omc omi oml omm omo omr omt oo- oob ooc ooi ool oom ooo oor oot or- orb orc ori orl orm oro orr ort ot- otb otc oti otl otm oto otr ott rbb rbc rbi rbl rbm rbo rbr rbt rcb rcc rci rcl rcm rco rcr rct rib ric rii ril rim rio rir rit rlc rli rll rlm rlo rlr rlt rmb rmc rmi rml rmm rmo rmr rmt rob roc roi rol rom roo ror rot rrb rrc rri rrl rrm rrr rrt rtb rtc rti rtl rtm rto rtr rtt tbb tbc tbi tbl tbm tbo tbr tbt tcb tcc tci tcl tcm tco tcr tct tib tic tii til tim tio tir tit tlc tli tll tlm tlo tlr tlt tmb tmc tmi tml tmm tmo tmr tmt to- tob toc toi tol tom too tor tot trb trc tri trl trm tro trr trt ttb ttc tti ttl ttm tto ttr ttt