-al -ol a-a a-b a-i aaa aab aad aai aal aan aao aar aas ab- aba abb abd abi abl abn abo abr abs ad- ada adb add adi adl adn ado adr ads ai- aia aib aid aii ail ain aio air ais al- ala alb ald ali all aln alo alr als an- ana anb and ani anl ann ano anr ans aoa aob aod aoi aol aon aoo aor aos ar- ara arb ard ari arl arn aro arr ars as- asa asb asd asi asl asn aso asr ass baa bab bad bai bal ban bao bar bas bba bbb bbd bbi bbl bbn bbo bbr bbs bda bdb bdd bdi bdl bdo bdr bds bi- bia bib bid bii bil bin bio bir bis bla blb bld bli bll bln blo blr bls bna bnb bnd bni bnl bnn bno bnr bns boa bob bod boi bol bon boo bor bos bra brb brd bri brl brn bro brr brs bsa bsb bsd bsi bsl bsn bso bsr bss daa dab dad dai dal dan dao dar das dba dbb dbd dbi dbl dbn dbo dbr dbs dda ddb ddd ddi ddl ddn ddo ddr dds di- dia dib did dii dil din dio dir dis dl- dla dlb dld dli dll dlo dlr dls dna dnb dnd dni dnl dnn dno dnr dns doa dob dod doi dol don doo dor dos dra drb drd dri drl drn dro drr drs dsa dsb dsd dsi dsl dsn dso dsr dss i-d ia- iaa iab iad iai ial ian iao iar ias iba ibb ibd ibi ibl ibn ibo ibr ibs ida idb idd idi idl idn ido idr ids iia iib iid iii iil iin iio iir iis il- ila ilb ild ili ill iln ilo ilr ils in- ina inb ind ini inl inn ino inr ins io- ioa iob iod ioi iol ion ioo ior ios ir- ira irb ird iri irl irn iro irr irs is- isa isb isd isi isl isn iso isr iss la- laa lab lad lai lal lan lao lar las lba lbb lbd lbi lbl lbo lbr lbs lda ldb ldd ldi ldl ldn ldo ldr lds lia lib lid lii lil lin lio lir lis lla llb lld lli lll lln llo llr lls lna lnb lnd lni lnl lnn lno lnr lns loa lob lod loi lol lon loo lor los lra lrb lrd lri lrn lro lrr lrs lsa lsb lsd lsi lsl lsn lso lsr lss n-i naa nab nad nai nal nan nao nar nas nba nbb nbd nbi nbl nbn nbo nbr nbs nda ndb ndd ndi ndl ndn ndo ndr nds nia nib nid nii nil nin nio nir nis nla nlb nld nli nll nln nlo nlr nls nna nnb nni nnl nnn nno nns no- noa nob nod noi nol non noo nor nos nra nrb nrd nri nrl nrn nro nrr nrs nsa nsb nsd nsi nsl nsn nso nsr nss o-i oaa oab oad oai oal oan oao oar oas ob- oba obb obd obi obl obn obo obr obs oda odb odd odi odl odn odo odr ods oia oib oid oii oil oin oio oir ois ola olb old oli oll oln olo ols on- ona onb ond oni onl onn ono onr ons oo- ooa oob ood ooi ool oon ooo oor oos or- ora orb ord ori orl orn oro orr ors os- osa osb osd osi osl osn oso osr oss ra- raa rab rad rai ral ran rao rar ras rba rbb rbd rbi rbl rbn rbo rbr rbs rda rdb rdd rdi rdl rdn rdo rdr rds ria rib rid rii ril rin rio rir ris rla rld rli rll rln rlo rlr rls rna rnb rnd rni rnn rno rnr rns roa rob rod roi rol ron roo ror ros rra rrb rrd rri rrl rrn rrr rrs rsa rsb rsd rsi rsl rsn rso rsr rss saa sab sad sai sal san sao sar sas sba sbb sbd sbi sbl sbn sbo sbr sbs sda sdb sdd sdi sdl sdn sdo sdr sds sia sib sid sii sil sin sio sir sis sla slb sld sli sll sln slo slr sls sna snb snd sni snl snn sno snr sns soa sob sod soi sol son soo sor sos sr- sra srb srd sri srl srn sro srr srs ss- ssa ssb ssd ssi ssl ssn sso ssr sss