-al -ic -ol a-a a-b a-c a-i aaa aab aac aae aai aak aal aao aap ab- aba abb abc abe abi abk abl abo abp ac- aca acb acc ace aci ack acl aco acp aea aeb aec aee aei aek ael aeo aep ai- aia aib aic aie aii aik ail aio aip aka akb akc ake aki akk akl ako akp al- ala alb alc ale ali alk all alo alp aoa aob aoc aoe aoi aok aol aoo aop ap- apa apb apc ape api apk apl apo app b-p baa bab bac bae bai bak bal bao bap bba bbb bbc bbe bbi bbk bbl bbo bbp bca bcb bcc bce bci bck bcl bco bcp be- bea beb bec bee bei bek bel beo bep bi- bia bib bic bie bii bik bil bio bip bka bkb bkc bke bkk bkl bko bkp bla blb blc ble bli blk bll blo blp boa bob boc boe boi bok bol boo bop bpa bpb bpc bpe bpi bpl bpo bpp c-- caa cab cac cae cai cak cal cao cap cba cbb cbc cbe cbi cbk cbl cbo cbp cca ccb ccc cce cci cck ccl cco ccp ce- cea ceb cec cee cei cek cel ceo cep ci- cia cib cic cie cii cik cil cio cip cka ckb ckc cki cko cl- cla clb clc cle cli clk cll clo clp co- coa cob coc coe coi cok col coo cop cpa cpb cpc cpe cpi cpk cpl cpo cpp eaa eab eac eae eai eak eal eao eap eba ebb ebc ebe ebi ebk ebl ebo ebp ec- eca ecb ecc ece eci eck ecl eco eea eeb eec eee eek eel eeo eep eia eib eic eie eii eik eil eio eip eka ekb ekc eke eki ekl eko ekp ela elb elc ele eli elk ell elo elp eo- eoa eob eoc eoe eoi eok eol eoo eop ep- epa epb epc epe epi epl epo epp ia- iaa iab iac iae iai ial iao iap iba ibb ibc ibe ibi ibk ibl ibo ibp ica icb icc ice ici ick icl ico icp ie- iea iec iee iei iek iel iep iia iib iic iie iii iil iio iip ika ikb ikc ike iki ikk ikl iko il- ila ilb ilc ile ili ilk ill ilo ilp io- ioa iob ioc ioe ioi iol ioo iop ipa ipb ipc ipe ipi ipl ipo ipp ka- kaa kab kac kae kai kak kal kao kap kba kbb kbc kbe kbi kbk kbl kbo kbp kca kcb kcc kce kci kck kcl kcp ke- kea keb kec kee kei kek kel keo kep kia kib kic kie kii kik kil kio kip kkb kkc kke kki kkk kkl kkp kl- kla klb klc kli klo koa kob koc koe koi kok kol koo kop kpa kpc kpe kpi kpk kpl kpo kpp l-p la- laa lab lac lae lai lak lal lao lap lba lbb lbc lbe lbi lbk lbl lbo lbp lca lcb lcc lce lci lck lcl lco lcp lea leb lec lee lei lek lel leo lep lia lib lic lie lii lik lil lio lip lka lkb lkl lkp lla llb llc lle lli llk lll llo llp loa lob loc loe loi lok lol loo lop lpa lpb lpc lpe lpi lpk lpl lpo lpp o-i oaa oab oac oae oai oak oal oao oap ob- oba obb obc obe obi obk obl obo obp oc- oca ocb occ oci ock ocl oco ocp oea oeb oec oee oei oel oeo oep oia oib oic oie oii oik oil oio oip oka okb okc oke oki okk okl oko okp ola olb olc ole oli olk oll olo olp oo- ooa oob ooc ooi ook ool ooo oop op- opa opb opc ope opi opk opl opo opp p-p paa pab pac pae pai pak pal pao pap pba pbb pbc pbe pbi pbk pbl pbo pbp pca pcb pcc pce pci pck pcl pco pcp pea peb pec pee pei pek pel peo pep pia pib pic pie pii pik pil pio pip pka pkb pkc pke pki pkl pko pkp pla plb plc ple pli plk pll plo plp poa pob poc poe poi pok pol poo pop ppa ppb ppc ppe ppi ppk ppl ppo ppp