-ic -ol b-p bbb bbc bbi bbl bbo bbp bcb bcc bci bcl bco bcp bi- bib bic bii bil bio bip blb blc bli bll blo blp bob boc boi bol boo bop bpb bpc bpi bpl bpo bpp c-- cbb cbc cbi cbl cbo cbp ccb ccc cci ccl cco ccp ci- cib cic cii cil cio cip cl- clb clc cli cll clo clp co- cob coc coi col coo cop cpb cpc cpi cpl cpo cpp ibb ibc ibi ibl ibo ibp icb icc ici icl ico icp iib iic iii iil iio iip il- ilb ilc ili ill ilo ilp io- iob ioc ioi iol ioo iop ipb ipc ipi ipl ipo ipp l-p lbb lbc lbi lbl lbo lbp lcb lcc lci lcl lco lcp lib lic lii lil lio lip llb llc lli lll llo llp lob loc loi lol loo lop lpb lpc lpi lpl lpo lpp o-i ob- obb obc obi obl obo obp oc- ocb occ oci ocl oco ocp oib oic oii oil oio oip olb olc oli oll olo olp oo- oob ooc ooi ool ooo oop op- opb opc opi opl opo opp p-p pbb pbc pbi pbl pbo pbp pcb pcc pci pcl pco pcp pib pic pii pil pio pip plb plc pli pll plo plp pob poc poi pol poo pop ppb ppc ppi ppl ppo ppp