-al -ol a-a a-b a-i a-t aaa aab aai aal aan aao aap aas aat ab- aba abb abi abl abn abo abp abs abt ai- aia aib aii ail ain aio aip ais ait al- ala alb ali all aln alo alp als alt an- ana anb ani anl ann ano anp ans ant aoa aob aoi aol aon aoo aop aos aot ap- apa apb api apl apn apo app aps apt as- asa asb asi asl asn aso asp ass ast at- ata atb ati atl atn ato atp ats att b-p baa bab bai bal ban bao bap bas bat bba bbb bbi bbl bbn bbo bbp bbs bbt bi- bia bib bii bil bin bio bip bis bit bla blb bli bll bln blo blp bls blt bna bnb bni bnl bnn bno bnp bns bnt boa bob boi bol bon boo bop bos bot bpa bpb bpi bpl bpn bpo bpp bps bpt bsa bsb bsi bsl bsn bso bsp bss bst bta btb bti btl btn bto btp bts btt ia- iaa iab iai ial ian iao iap ias iat iba ibb ibi ibl ibn ibo ibp ibs ibt iia iib iii iil iin iio iip iis iit il- ila ilb ili ill iln ilo ilp ils ilt in- ina inb ini inl inn ino inp ins int io- ioa iob ioi iol ion ioo iop ios iot ipa ipb ipi ipl ipn ipo ipp ips ipt is- isa isb isi isl isn iso isp iss ist ita itb iti itl itn ito itp its itt l-p la- laa lab lai lal lan lao lap las lat lba lbb lbi lbl lbo lbp lbs lbt lia lib lii lil lin lio lip lis lit lla llb lli lll lln llo llp lls llt lna lnb lni lnl lnn lno lnp lns lnt loa lob loi lol lon loo lop los lot lpa lpb lpi lpl lpn lpo lpp lps lpt lsa lsb lsi lsl lsn lso lsp lss lst lta ltb lti ltl lto ltp lts ltt n-i naa nab nai nal nan nao nap nas nat nba nbb nbi nbl nbn nbo nbp nbs nbt nia nib nii nil nin nio nip nis nit nla nlb nli nll nln nlo nlp nls nlt nna nnb nni nnl nnn nno nnp nns nnt no- noa nob noi nol non noo nop nos not npa npb npi npl npn npo npp nps npt nsa nsb nsi nsl nsn nso nsp nss nst nta ntb nti ntn nto ntp nts ntt o-i oaa oab oai oal oan oao oap oas oat ob- oba obb obi obl obn obo obp obs obt oia oib oii oil oin oio oip ois oit ola olb oli oll oln olo olp ols olt on- ona onb oni onl onn ono onp ons ont oo- ooa oob ooi ool oon ooo oop oos oot op- opa opb opi opl opn opo opp ops opt os- osa osb osi osl osn oso osp oss ost ot- ota otb oti otl otn oto otp ots ott p-p paa pab pai pal pan pao pap pas pat pba pbb pbi pbl pbn pbo pbp pbs pbt pia pib pii pil pin pio pip pis pit pla plb pli pll pln plo plp pls plt pn- pna pnb pni pnl pnn pno pnp pns pnt poa pob poi pol pon poo pop pos pot ppa ppb ppi ppl ppn ppo ppp pps ppt ps- psa psb psi psl psn pso psp pss pst pt- pta ptb pti ptl ptn pto ptp pts ptt saa sab sai sal san sao sap sas sat sba sbb sbi sbl sbn sbo sbp sbs sbt sia sib sii sil sin sio sip sis sit sla slb sli sll sln slo slp sls slt sna snb sni snl snn sno snp sns snt soa sob soi sol son soo sop sos sot spa spb spi spl spn spo spp sps spt ss- ssa ssb ssi ssl ssn sso ssp sss sst sta stb sti stl stn sto stp sts stt taa tab tai tal tan tao tap tas tat tba tbb tbi tbl tbn tbo tbp tbs tbt tia tib tii til tin tio tip tis tit tla tli tll tln tlo tlp tls tlt tna tnb tni tnl tnn tno tnp tns tnt to- toa tob toi tol ton too top tos tot tpa tpb tpi tpl tpn tpo tpp tps tpt tsa tsb tsi tsl tsn tso tsp tss tst tta ttb tti ttl ttn tto ttp tts ttt