-al -ol a-a a-b a-i a-t aaa aab aad aai aal aao aar aat ab- aba abb abd abi abl abo abr abt ad- ada adb add adi adl ado adr adt ai- aia aib aid aii ail aio air ait al- ala alb ald ali all alo alr alt aoa aob aod aoi aol aoo aor aot ar- ara arb ard ari arl aro arr art at- ata atb atd ati atl ato atr att baa bab bad bai bal bao bar bat bba bbb bbd bbi bbl bbo bbr bbt bda bdb bdd bdi bdl bdo bdr bdt bi- bia bib bid bii bil bio bir bit bla blb bld bli bll blo blr blt boa bob bod boi bol boo bor bot bra brb brd bri brl bro brr brt bta btb btd bti btl bto btr btt daa dab dad dai dal dao dar dat dba dbb dbd dbi dbl dbo dbr dbt dda ddb ddd ddi ddl ddo ddr ddt di- dia dib did dii dil dio dir dit dl- dla dlb dld dli dll dlo dlr dlt doa dob dod doi dol doo dor dot dra drb drd dri drl dro drr drt dta dtb dtd dti dtl dto dtr dtt i-d ia- iaa iab iad iai ial iao iar iat iba ibb ibd ibi ibl ibo ibr ibt ida idb idd idi idl ido idr idt iia iib iid iii iil iio iir iit il- ila ilb ild ili ill ilo ilr ilt io- ioa iob iod ioi iol ioo ior iot ir- ira irb ird iri irl iro irr irt ita itb itd iti itl ito itt la- laa lab lad lai lal lao lar lat lba lbb lbd lbi lbl lbo lbr lbt lda ldb ldd ldi ldl ldo ldr ldt lia lib lid lii lil lio lir lit lla llb lld lli lll llo llr llt loa lob lod loi lol loo lor lot lra lrb lrd lri lro lrr lrt lta ltb ltd lti ltl lto ltr ltt o-i oaa oab oad oai oal oao oar oat ob- oba obb obd obi obl obo obr obt oda odb odd odi odl odo odr odt oia oib oid oii oil oio oir oit ola olb old oli oll olo olt oo- ooa oob ood ooi ool ooo oor oot or- ora orb ord ori orl oro orr ort ot- ota otb otd oti otl oto otr ott ra- raa rab rad rai ral rao rar rat rba rbb rbd rbi rbl rbo rbr rbt rda rdb rdd rdi rdl rdo rdr rdt ria rib rid rii ril rio rir rit rla rld rli rll rlo rlr rlt roa rob rod roi rol roo ror rot rra rrb rrd rri rrl rrr rrt rta rtb rtd rti rtl rto rtr rtt taa tab tad tai tal tao tar tat tba tbb tbd tbi tbl tbo tbr tbt tda tdb tdd tdi tdl tdo tdr tdt tia tib tid tii til tio tir tit tla tld tli tll tlo tlr tlt to- toa tob tod toi tol too tor tot tra trb trd tri trl tro trr trt tta ttb ttd tti ttl tto ttr ttt