-al -ol a-a a-b a-i a-t aaa aab aad aai aal aao aar aas aat ab- aba abb abd abi abl abo abr abs abt ad- ada adb add adi adl ado adr ads adt ai- aia aib aid aii ail aio air ais ait al- ala alb ald ali all alo alr als alt aoa aob aod aoi aol aoo aor aos aot ar- ara arb ard ari arl aro arr ars art as- asa asb asd asi asl aso asr ass ast at- ata atb atd ati atl ato atr ats att baa bab bad bai bal bao bar bas bat bba bbb bbd bbi bbl bbo bbr bbs bbt bda bdb bdd bdi bdl bdo bdr bds bdt bi- bia bib bid bii bil bio bir bis bit bla blb bld bli bll blo blr bls blt boa bob bod boi bol boo bor bos bot bra brb brd bri brl bro brr brs brt bsa bsb bsd bsi bsl bso bsr bss bst bta btb btd bti btl bto btr bts btt daa dab dad dai dal dao dar das dat dba dbb dbd dbi dbl dbo dbr dbs dbt dda ddb ddd ddi ddl ddo ddr dds ddt di- dia dib did dii dil dio dir dis dit dl- dla dlb dld dli dll dlo dlr dls dlt doa dob dod doi dol doo dor dos dot dra drb drd dri drl dro drr drs drt dsa dsb dsd dsi dsl dso dsr dss dst dta dtb dtd dti dtl dto dtr dts dtt i-d ia- iaa iab iad iai ial iao iar ias iat iba ibb ibd ibi ibl ibo ibr ibs ibt ida idb idd idi idl ido idr ids idt iia iib iid iii iil iio iir iis iit il- ila ilb ild ili ill ilo ilr ils ilt io- ioa iob iod ioi iol ioo ior ios iot ir- ira irb ird iri irl iro irr irs irt is- isa isb isd isi isl iso isr iss ist ita itb itd iti itl ito its itt la- laa lab lad lai lal lao lar las lat lba lbb lbd lbi lbl lbo lbr lbs lbt lda ldb ldd ldi ldl ldo ldr lds ldt lia lib lid lii lil lio lir lis lit lla llb lld lli lll llo llr lls llt loa lob lod loi lol loo lor los lot lra lrb lrd lri lro lrr lrs lrt lsa lsb lsd lsi lsl lso lsr lss lst lta ltb ltd lti ltl lto ltr lts ltt o-i oaa oab oad oai oal oao oar oas oat ob- oba obb obd obi obl obo obr obs obt oda odb odd odi odl odo odr ods odt oia oib oid oii oil oio oir ois oit ola olb old oli oll olo ols olt oo- ooa oob ood ooi ool ooo oor oos oot or- ora orb ord ori orl oro orr ors ort os- osa osb osd osi osl oso osr oss ost ot- ota otb otd oti otl oto otr ots ott ra- raa rab rad rai ral rao rar ras rat rba rbb rbd rbi rbl rbo rbr rbs rbt rda rdb rdd rdi rdl rdo rdr rds rdt ria rib rid rii ril rio rir ris rit rla rld rli rll rlo rlr rls rlt roa rob rod roi rol roo ror ros rot rra rrb rrd rri rrl rrr rrs rrt rsa rsb rsd rsi rsl rso rsr rss rst rta rtb rtd rti rtl rto rtr rts rtt saa sab sad sai sal sao sar sas sat sba sbb sbd sbi sbl sbo sbr sbs sbt sda sdb sdd sdi sdl sdo sdr sds sdt sia sib sid sii sil sio sir sis sit sla slb sld sli sll slo slr sls slt soa sob sod soi sol soo sor sos sot sr- sra srb srd sri srl sro srr srs srt ss- ssa ssb ssd ssi ssl sso ssr sss sst sta stb std sti stl sto str sts stt taa tab tad tai tal tao tar tas tat tba tbb tbd tbi tbl tbo tbr tbs tbt tda tdb tdd tdi tdl tdo tdr tds tdt tia tib tid tii til tio tir tis tit tla tld tli tll tlo tlr tls tlt to- toa tob tod toi tol too tor tos tot tra trb trd tri trl tro trr trs trt tsa tsb tsd tsi tsl tso tsr tss tst tta ttb ttd tti ttl tto ttr tts ttt