-al -ol a-a a-b a-i a-t aaa aab aai aal aao aas aat aav ab- aba abb abi abl abo abs abt abv ai- aia aib aii ail aio ais ait aiv al- ala alb ali all alo als alt alv aoa aob aoi aol aoo aos aot aov as- asa asb asi asl aso ass ast asv at- ata atb ati atl ato ats att atv av- ava avb avi avl avo avs avt baa bab bai bal bao bas bat bav bba bbb bbi bbl bbo bbs bbt bi- bia bib bii bil bio bis bit biv bla blb bli bll blo bls blt blv boa bob boi bol boo bos bot bov bsa bsb bsi bsl bso bss bst bsv bta btb bti btl bto bts btt btv bva bvb bvi bvl bvo bvs bvt bvv i-v ia- iaa iab iai ial iao ias iat iav iba ibb ibi ibl ibo ibs ibt ibv iia iib iii iil iio iis iit il- ila ilb ili ill ilo ils ilt ilv io- ioa iob ioi iol ioo ios iot iov is- isa isb isi isl iso iss ist isv ita itb iti itl ito its itt itv iva ivb ivi ivl ivo ivs ivt ivv la- laa lab lai lal lao las lat lav lba lbb lbi lbl lbo lbs lbt lbv lia lib lii lil lio lis lit liv lla llb lli lll llo lls llt llv loa lob loi lol loo los lot lov lsa lsb lsi lsl lso lss lst lsv lta ltb lti ltl lto lts ltt ltv lva lvb lvi lvl lvs lvt lvv o-i oaa oab oai oal oao oas oat oav ob- oba obb obi obl obo obs obt obv oia oib oii oil oio ois oit oiv ola olb oli oll olo ols olt oo- ooa oob ooi ool ooo oos oot oov os- osa osb osi osl oso oss ost osv ot- ota otb oti otl oto ots ott otv ov- ova ovb ovi ovl ovo ovs ovv saa sab sai sal sao sas sat sav sba sbb sbi sbl sbo sbs sbt sbv sia sib sii sil sio sis sit siv sla slb sli sll slo sls slt slv soa sob soi sol soo sos sot sov ss- ssa ssb ssi ssl sso sss sst ssv sta stb sti stl sto sts stt stv sva svb svi svl svo svs svt svv taa tab tai tal tao tas tat tav tba tbb tbi tbl tbo tbs tbt tbv tia tib tii til tio tis tit tiv tla tli tll tlo tls tlt tlv to- toa tob toi tol too tos tot tov tsa tsb tsi tsl tso tss tst tsv tta ttb tti ttl tto tts ttt ttv tva tvb tvi tvl tvo tvs tvt v-a vaa vab vai val vao vas vat vav vba vbi vbl vbo vbs vbv vi- via vib vii vil vio vis vit viv vl- vla vlb vll vlo vls vlt vlv voa vob voi vol voo vos vot vov vsa vsb vsi vsl vso vss vst vsv vta vtb vti vtl vto vts vtt vtv vva vvb vvi vvo vvs vvt vvv