-al -ic -ol a-a a-b a-c a-i aaa aab aac aai aal aao aap aar aas ab- aba abb abc abi abl abo abp abr abs ac- aca acb acc aci acl aco acp acr acs ai- aia aib aic aii ail aio aip air ais al- ala alb alc ali all alo alp alr als aoa aob aoc aoi aol aoo aop aor aos ap- apa apb apc api apl apo app apr aps ar- ara arb arc ari arl aro arp arr ars as- asa asb asc asi asl aso asp asr ass b-p baa bab bac bai bal bao bap bar bas bba bbb bbc bbi bbl bbo bbp bbr bbs bca bcb bcc bci bcl bco bcp bcr bcs bi- bia bib bic bii bil bio bip bir bis bla blb blc bli bll blo blp blr bls boa bob boc boi bol boo bop bor bos bpa bpb bpc bpi bpl bpo bpp bpr bps bra brb bri brl bro brp brr brs bsa bsb bsc bsi bsl bso bsp bsr bss c-- caa cab cac cai cal cao cap car cas cba cbb cbc cbi cbl cbo cbp cbr cbs cca ccb ccc cci ccl cco ccp ccr ccs ci- cia cib cic cii cil cio cip cir cis cl- cla clb clc cli cll clo clp clr cls co- coa cob coc coi col coo cop cor cos cpa cpb cpc cpi cpl cpo cpp cpr cps cra crb crc cri crl cro crp crr crs csa csb csc csi csl cso csp csr css ia- iaa iab iac iai ial iao iap iar ias iba ibb ibc ibi ibl ibo ibp ibr ibs ica icb icc ici icl ico icp icr ics iia iib iic iii iil iio iip iir iis il- ila ilb ilc ili ill ilo ilp ilr ils io- ioa iob ioc ioi iol ioo iop ior ios ipa ipb ipc ipi ipl ipo ipp ipr ips ir- ira irb irc iri irl iro irp irr irs is- isa isb isc isi isl iso isp isr iss l-p la- laa lab lac lai lal lao lap lar las lba lbb lbc lbi lbl lbo lbp lbr lbs lca lcb lcc lci lcl lco lcp lcr lcs lia lib lic lii lil lio lip lir lis lla llb llc lli lll llo llp llr lls loa lob loc loi lol loo lop lor los lpa lpb lpc lpi lpl lpo lpp lpr lps lra lrb lrc lri lro lrp lrr lrs lsa lsb lsc lsi lsl lso lsp lsr lss o-i oaa oab oac oai oal oao oap oar oas ob- oba obb obc obi obl obo obp obr obs oc- oca ocb occ oci ocl oco ocp ocr ocs oia oib oic oii oil oio oip oir ois ola olb olc oli oll olo olp ols oo- ooa oob ooc ooi ool ooo oop oor oos op- opa opb opc opi opl opo opp opr ops or- ora orb orc ori orl oro orp orr ors os- osa osb osc osi osl oso osp osr oss p-p paa pab pac pai pal pao pap par pas pba pbb pbc pbi pbl pbo pbp pbr pbs pca pcb pcc pci pcl pco pcp pcr pcs pia pib pic pii pil pio pip pir pis pla plb plc pli pll plo plp plr pls poa pob poc poi pol poo pop por pos ppa ppb ppc ppi ppl ppo ppp ppr pps pra prb prc pri prl pro prp prr prs ps- psa psb psc psi psl pso psp psr pss ra- raa rab rac rai ral rao rap rar ras rba rbb rbc rbi rbl rbo rbp rbr rbs rca rcb rcc rci rcl rco rcp rcr rcs ria rib ric rii ril rio rip rir ris rla rlc rli rll rlo rlp rlr rls roa rob roc roi rol roo rop ror ros rpa rpb rpc rpi rpl rpo rpp rpr rps rra rrb rrc rri rrl rrp rrr rrs rsa rsb rsc rsi rsl rso rsp rsr rss saa sab sac sai sal sao sap sar sas sba sbb sbc sbi sbl sbo sbp sbr sbs sca scb scc sci scl sco scp scr scs sia sib sic sii sil sio sip sir sis sla slb slc sli sll slo slp slr sls soa sob soc soi sol soo sop sor sos spa spb spc spi spl spo spp spr sps sr- sra srb src sri srl sro srp srr srs ss- ssa ssb ssc ssi ssl sso ssp ssr sss