-al -ic -ol a-a a-b a-c a-i aaa aab aac aaf aai aal aao aar aas aau ab- aba abb abc abf abi abl abo abr abs abu ac- aca acb acc acf aci acl aco acr acs acu af- afa afb afc aff afi afl afo afr afs afu ai- aia aib aic aif aii ail aio air ais aiu al- ala alb alc alf ali all alo alr als alu aoa aob aoc aof aoi aol aoo aor aos aou ar- ara arb arc arf ari arl aro arr ars aru as- asa asb asc asf asi asl aso asr ass asu au- aua aub auc auf aui aul auo aur aus b-u baa bab bac baf bai bal bao bar bas bau bba bbb bbc bbf bbi bbl bbo bbr bbs bbu bca bcb bcc bcf bci bcl bco bcr bcs bcu bfa bfb bfc bff bfi bfl bfo bfr bfs bfu bi- bia bib bic bif bii bil bio bir bis biu bla blb blc blf bli bll blo blr bls blu boa bob boc bof boi bol boo bor bos bou bra brb brf bri brl bro brr brs bru bsa bsb bsc bsf bsi bsl bso bsr bss bsu bua bub buc buf bui bul buo bur bus buu c-- caa cab cac caf cai cal cao car cas cau cba cbb cbc cbf cbi cbl cbo cbr cbs cbu cca ccb ccc ccf cci ccl cco ccr ccs ccu cfa cfb cfc cff cfi cfl cfo cfr cfs cfu ci- cia cib cic cif cii cil cio cir cis ciu cl- cla clb clc clf cli cll clo clr cls clu co- coa cob coc cof coi col coo cor cos cou cra crb crc crf cri crl cro crr crs cru csa csb csc csf csi csl cso csr css csu cua cub cuc cuf cui cul cuo cur cus cuu faa fab fac faf fai fal fao far fas fau fba fbb fbc fbf fbi fbl fbo fbr fbs fbu fca fcb fcc fcf fci fcl fco fcr fcs fcu ffa ffc fff ffi ffl ffo ffr ffs ffu fia fib fic fif fii fil fir fis fiu fla flb flc flf fli fll flo flr fls flu foa fob foc fof foi fol foo for fos fou fra frb frc frf fri frl fro frr frs fru fsa fsb fsc fsf fsi fsl fso fsr fss fsu fua fub fuf fui ful fuo fur fus fuu i-f ia- iaa iab iac iaf iai ial iao iar ias iau iba ibb ibc ibf ibi ibl ibo ibr ibs ibu ica icb icc icf ici icl ico icr ics icu ifa ifb ifc iff ifi ifl ifo ifr ifs ifu iia iib iic iif iii iil iio iir iis iiu il- ila ilb ilc ilf ili ill ilo ilr ils ilu io- ioa iob ioc iof ioi iol ioo ior ios iou ir- ira irb irc irf iri irl iro irr irs iru is- isa isb isc isf isi isl iso isr iss isu iu- iua iub iuc iui iur ius la- laa lab lac laf lai lal lao lar las lau lba lbb lbc lbf lbi lbl lbo lbr lbs lbu lca lcb lcc lcf lci lcl lco lcr lcs lcu lfa lfb lfc lff lfi lfl lfo lfr lfs lfu lia lib lic lif lii lil lio lir lis liu lla llb llc llf lli lll llo llr lls llu loa lob loc lof loi lol loo lor los lou lra lrb lrc lrf lri lro lrr lrs lru lsa lsb lsc lsf lsi lsl lso lsr lss lsu lua lub luc luf lui lul luo lur lus luu o-i oaa oab oac oaf oai oal oao oar oas oau ob- oba obb obc obf obi obl obo obr obs obu oc- oca ocb occ ocf oci ocl oco ocr ocs ocu of- ofa ofb ofc off ofi ofl ofo ofr ofs ofu oia oib oic oif oii oil oio oir ois oiu ola olb olc olf oli oll olo ols olu oo- ooa oob ooc oof ooi ool ooo oor oos or- ora orb orc orf ori orl oro orr ors oru os- osa osb osc osf osi osl oso osr oss osu ou- oua ouc ouf oui oul ouo our ous ra- raa rab rac raf rai ral rao rar ras rau rba rbb rbc rbf rbi rbl rbo rbr rbs rbu rca rcb rcc rcf rci rcl rco rcr rcs rcu rfa rfb rfc rff rfi rfl rfo rfr rfs rfu ria rib ric rif rii ril rio rir ris rla rlc rlf rli rll rlo rlr rls rlu roa rob roc rof roi rol roo ror ros rou rra rrb rrc rrf rri rrl rrr rrs rru rsa rsb rsc rsf rsi rsl rso rsr rss rsu rua rub ruc ruf rui ruo rur rus ruu saa sab sac saf sai sal sao sar sas sau sba sbb sbc sbf sbi sbl sbo sbr sbs sbu sca scb scc scf sci scl sco scr scs scu sfa sfb sfc sff sfi sfl sfo sfr sfs sfu sia sib sic sif sii sil sio sir sis siu sla slb slc slf sli sll slo slr sls slu soa sob soc sof soi sol soo sor sos sou sr- sra srb src srf sri srl sro srr srs ss- ssa ssb ssc ssf ssi ssl sso ssr sss ssu sua sub suc suf sui sul suo sur sus suu ua- uaa uab uac uaf uai ual uao uar uas uau uba ubb ubc ubf ubi ubl ubo ubr ubs ubu uca ucb ucc ucf uci ucl uco ucr ucs ucu ufa ufc uff ufi ufl ufo ufr ufs ufu uia uib uic uif uii uil uio uir uis uiu ula ulb ulc ulf uli ull ulo ulr uls ulu uoa uob uoc uol uoo uor uos ur- ura urb urc urf uri url uro urr urs uru usa