-al -ol a-a a-b a-i a-t aaa aab aai aal aan aao aap aat ab- aba abb abi abl abn abo abp abt ai- aia aib aii ail ain aio aip ait al- ala alb ali all aln alo alp alt an- ana anb ani anl ann ano anp ant aoa aob aoi aol aon aoo aop aot ap- apa apb api apl apn apo app apt at- ata atb ati atl atn ato atp att b-p baa bab bai bal ban bao bap bat bba bbb bbi bbl bbn bbo bbp bbt bi- bia bib bii bil bin bio bip bit bla blb bli bll bln blo blp blt bna bnb bni bnl bnn bno bnp bnt boa bob boi bol bon boo bop bot bpa bpb bpi bpl bpn bpo bpp bpt bta btb bti btl btn bto btp btt ia- iaa iab iai ial ian iao iap iat iba ibb ibi ibl ibn ibo ibp ibt iia iib iii iil iin iio iip iit il- ila ilb ili ill iln ilo ilp ilt in- ina inb ini inl inn ino inp int io- ioa iob ioi iol ion ioo iop iot ipa ipb ipi ipl ipn ipo ipp ipt ita itb iti itl itn ito itp itt l-p la- laa lab lai lal lan lao lap lat lba lbb lbi lbl lbo lbp lbt lia lib lii lil lin lio lip lit lla llb lli lll lln llo llp llt lna lnb lni lnl lnn lno lnp lnt loa lob loi lol lon loo lop lot lpa lpb lpi lpl lpn lpo lpp lpt lta ltb lti ltl lto ltp ltt n-i naa nab nai nal nan nao nap nat nba nbb nbi nbl nbn nbo nbp nbt nia nib nii nil nin nio nip nit nla nlb nli nll nln nlo nlp nlt nna nnb nni nnl nnn nno nnp nnt no- noa nob noi nol non noo nop not npa npb npi npl npn npo npp npt nta ntb nti ntn nto ntp ntt o-i oaa oab oai oal oan oao oap oat ob- oba obb obi obl obn obo obp obt oia oib oii oil oin oio oip oit ola olb oli oll oln olo olp olt on- ona onb oni onl onn ono onp ont oo- ooa oob ooi ool oon ooo oop oot op- opa opb opi opl opn opo opp opt ot- ota otb oti otl otn oto otp ott p-p paa pab pai pal pan pao pap pat pba pbb pbi pbl pbn pbo pbp pbt pia pib pii pil pin pio pip pit pla plb pli pll pln plo plp plt pn- pna pnb pni pnl pnn pno pnp pnt poa pob poi pol pon poo pop pot ppa ppb ppi ppl ppn ppo ppp ppt pt- pta ptb pti ptl ptn pto ptp ptt taa tab tai tal tan tao tap tat tba tbb tbi tbl tbn tbo tbp tbt tia tib tii til tin tio tip tit tla tli tll tln tlo tlp tlt tna tnb tni tnl tnn tno tnp tnt to- toa tob toi tol ton too top tot tpa tpb tpi tpl tpn tpo tpp tpt tta ttb tti ttl ttn tto ttp ttt