-ic -ol b-p bbb bbc bbi bbl bbo bbp bbs bbt bcb bcc bci bcl bco bcp bcs bct bi- bib bic bii bil bio bip bis bit blb blc bli bll blo blp bls blt bob boc boi bol boo bop bos bot bpb bpc bpi bpl bpo bpp bps bpt bsb bsc bsi bsl bso bsp bss bst btb btc bti btl bto btp bts btt c-- cbb cbc cbi cbl cbo cbp cbs cbt ccb ccc cci ccl cco ccp ccs cct ci- cib cic cii cil cio cip cis cit cl- clb clc cli cll clo clp cls clt co- cob coc coi col coo cop cos cot cpb cpc cpi cpl cpo cpp cps cpt csb csc csi csl cso csp css cst ctb ctc cti ctl cto ctp cts ctt ibb ibc ibi ibl ibo ibp ibs ibt icb icc ici icl ico icp ics ict iib iic iii iil iio iip iis iit il- ilb ilc ili ill ilo ilp ils ilt io- iob ioc ioi iol ioo iop ios iot ipb ipc ipi ipl ipo ipp ips ipt is- isb isc isi isl iso isp iss ist itb itc iti itl ito itp its itt l-p lbb lbc lbi lbl lbo lbp lbs lbt lcb lcc lci lcl lco lcp lcs lct lib lic lii lil lio lip lis lit llb llc lli lll llo llp lls llt lob loc loi lol loo lop los lot lpb lpc lpi lpl lpo lpp lps lpt lsb lsc lsi lsl lso lsp lss lst ltb ltc lti ltl lto ltp lts ltt o-i ob- obb obc obi obl obo obp obs obt oc- ocb occ oci ocl oco ocp ocs oct oib oic oii oil oio oip ois oit olb olc oli oll olo olp ols olt oo- oob ooc ooi ool ooo oop oos oot op- opb opc opi opl opo opp ops opt os- osb osc osi osl oso osp oss ost ot- otb otc oti otl oto otp ots ott p-p pbb pbc pbi pbl pbo pbp pbs pbt pcb pcc pci pcl pco pcp pcs pct pib pic pii pil pio pip pis pit plb plc pli pll plo plp pls plt pob poc poi pol poo pop pos pot ppb ppc ppi ppl ppo ppp pps ppt ps- psb psc psi psl pso psp pss pst pt- ptb ptc pti ptl pto ptp pts ptt sbb sbc sbi sbl sbo sbp sbs sbt scb scc sci scl sco scp scs sct sib sic sii sil sio sip sis sit slb slc sli sll slo slp sls slt sob soc soi sol soo sop sos sot spb spc spi spl spo spp sps spt ss- ssb ssc ssi ssl sso ssp sss sst stb stc sti stl sto stp sts stt tbb tbc tbi tbl tbo tbp tbs tbt tcb tcc tci tcl tco tcp tcs tct tib tic tii til tio tip tis tit tlc tli tll tlo tlp tls tlt to- tob toc toi tol too top tos tot tpb tpc tpi tpl tpo tpp tps tpt tsb tsc tsi tsl tso tsp tss tst ttb ttc tti ttl tto ttp tts ttt