-al -ol a-a a-b a-i aaa aab aad aag aai aal aao aar aas ab- aba abb abd abg abi abl abo abr abs ad- ada adb add adg adi adl ado adr ads ag- aga agb agd agg agi agl ago agr ags ai- aia aib aid aig aii ail aio air ais al- ala alb ald alg ali all alo alr als aoa aob aod aog aoi aol aoo aor aos ar- ara arb ard arg ari arl aro arr ars as- asa asb asd asg asi asl aso asr ass baa bab bad bag bai bal bao bar bas bba bbb bbd bbg bbi bbl bbo bbr bbs bda bdb bdd bdg bdi bdl bdo bdr bds bga bgb bgd bgg bgi bgl bgo bgr bgs bi- bia bib bid big bii bil bio bir bis bla blb bld blg bli bll blo blr bls boa bob bod bog boi bol boo bor bos bra brb brd brg bri brl bro brr brs bsa bsb bsd bsg bsi bsl bso bsr bss daa dab dad dag dai dal dao dar das dba dbb dbd dbg dbi dbl dbo dbr dbs dda ddb ddd ddg ddi ddl ddo ddr dds dga dgd dgg dgi dgl dgr dgs di- dia dib did dig dii dil dio dir dis dl- dla dlb dld dlg dli dll dlo dlr dls doa dob dod dog doi dol doo dor dos dra drb drd drg dri drl dro drr drs dsa dsb dsd dsg dsi dsl dso dsr dss g-d gaa gab gad gag gai gal gao gar gas gba gbd gbg gbi gbl gbo gbr gbs gda gdb gdd gdi gdl gdo gdr gds gga ggb ggd ggg ggi ggo ggr ggs gia gib gid gig gii gil gio gir gis gla glb gld glg gli gll glo glr gls goa gob god gog goi gol goo gor gos gra grb grd grg gri grl gro grr grs gsa gsb gsd gsg gsi gsl gso gsr gss i-d ia- iaa iab iad iag iai ial iao iar ias iba ibb ibd ibg ibi ibl ibo ibr ibs ida idb idd idg idi idl ido idr ids iga igb igd igg igi igl igo igr igs iia iib iid iii iil iio iir iis il- ila ilb ild ilg ili ill ilo ilr ils io- ioa iob iod iog ioi iol ioo ior ios ir- ira irb ird irg iri irl iro irr irs is- isa isb isd isg isi isl iso isr iss la- laa lab lad lag lai lal lao lar las lba lbb lbd lbg lbi lbl lbo lbr lbs lda ldb ldd ldg ldi ldl ldo ldr lds lga lgb lgd lgg lgi lgl lgo lgr lgs lia lib lid lig lii lil lio lir lis lla llb lld llg lli lll llo llr lls loa lob lod log loi lol loo lor los lra lrb lrd lrg lri lro lrr lrs lsa lsb lsd lsg lsi lsl lso lsr lss o-i oaa oab oad oag oai oal oao oar oas ob- oba obb obd obg obi obl obo obr obs oda odb odd odg odi odl odo odr ods oga ogd ogg ogi ogl ogo ogs oia oib oid oii oil oio oir ois ola olb old olg oli oll olo ols oo- ooa oob ood oog ooi ool ooo oor oos or- ora orb ord org ori orl oro orr ors os- osa osb osd osg osi osl oso osr oss ra- raa rab rad rag rai ral rao rar ras rba rbb rbd rbg rbi rbl rbo rbr rbs rda rdb rdd rdg rdi rdl rdo rdr rds rga rgb rgd rgg rgi rgo rgr rgs ria rib rid rig rii ril rio rir ris rla rld rlg rli rll rlo rlr rls roa rob rod rog roi rol roo ror ros rra rrb rrd rrg rri rrl rrr rrs rsa rsb rsd rsg rsi rsl rso rsr rss saa sab sad sag sai sal sao sar sas sba sbb sbd sbg sbi sbl sbo sbr sbs sda sdb sdd sdg sdi sdl sdo sdr sds sga sgb sgd sgg sgi sgl sgo sgr sgs sia sib sid sig sii sil sio sir sis sla slb sld slg sli sll slo slr sls soa sob sod sog soi sol soo sor sos sr- sra srb srd srg sri srl sro srr srs ss- ssa ssb ssd ssg ssi ssl sso ssr sss