-al -ol a-a a-b a-i aaa aab aad aai aal aao aar aas ab- aba abb abd abi abl abo abr abs ad- ada adb add adi adl ado adr ads ai- aia aib aid aii ail aio air ais al- ala alb ald ali all alo alr als aoa aob aod aoi aol aoo aor aos ar- ara arb ard ari arl aro arr ars as- asa asb asd asi asl aso asr ass baa bab bad bai bal bao bar bas bba bbb bbd bbi bbl bbo bbr bbs bda bdb bdd bdi bdl bdo bdr bds bi- bia bib bid bii bil bio bir bis bla blb bld bli bll blo blr bls boa bob bod boi bol boo bor bos bra brb brd bri brl bro brr brs bsa bsb bsd bsi bsl bso bsr bss daa dab dad dai dal dao dar das dba dbb dbd dbi dbl dbo dbr dbs dda ddb ddd ddi ddl ddo ddr dds di- dia dib did dii dil dio dir dis dl- dla dlb dld dli dll dlo dlr dls doa dob dod doi dol doo dor dos dra drb drd dri drl dro drr drs dsa dsb dsd dsi dsl dso dsr dss i-d ia- iaa iab iad iai ial iao iar ias iba ibb ibd ibi ibl ibo ibr ibs ida idb idd idi idl ido idr ids iia iib iid iii iil iio iir iis il- ila ilb ild ili ill ilo ilr ils io- ioa iob iod ioi iol ioo ior ios ir- ira irb ird iri irl iro irr irs is- isa isb isd isi isl iso isr iss la- laa lab lad lai lal lao lar las lba lbb lbd lbi lbl lbo lbr lbs lda ldb ldd ldi ldl ldo ldr lds lia lib lid lii lil lio lir lis lla llb lld lli lll llo llr lls loa lob lod loi lol loo lor los lra lrb lrd lri lro lrr lrs lsa lsb lsd lsi lsl lso lsr lss o-i oaa oab oad oai oal oao oar oas ob- oba obb obd obi obl obo obr obs oda odb odd odi odl odo odr ods oia oib oid oii oil oio oir ois ola olb old oli oll olo ols oo- ooa oob ood ooi ool ooo oor oos or- ora orb ord ori orl oro orr ors os- osa osb osd osi osl oso osr oss ra- raa rab rad rai ral rao rar ras rba rbb rbd rbi rbl rbo rbr rbs rda rdb rdd rdi rdl rdo rdr rds ria rib rid rii ril rio rir ris rla rld rli rll rlo rlr rls roa rob rod roi rol roo ror ros rra rrb rrd rri rrl rrr rrs rsa rsb rsd rsi rsl rso rsr rss saa sab sad sai sal sao sar sas sba sbb sbd sbi sbl sbo sbr sbs sda sdb sdd sdi sdl sdo sdr sds sia sib sid sii sil sio sir sis sla slb sld sli sll slo slr sls soa sob sod soi sol soo sor sos sr- sra srb srd sri srl sro srr srs ss- ssa ssb ssd ssi ssl sso ssr sss