-al a-a a-b a-i a-t aaa aab aae aai aal aap aas aat ab- aba abb abe abi abl abp abs abt aea aeb aee aei ael aep aes aet ai- aia aib aie aii ail aip ais ait al- ala alb ale ali all alp als alt ap- apa apb ape api apl app aps apt as- asa asb ase asi asl asp ass ast at- ata atb ate ati atl atp ats att b-p baa bab bae bai bal bap bas bat bba bbb bbe bbi bbl bbp bbs bbt be- bea beb bee bei bel bep bes bet bi- bia bib bie bii bil bip bis bit bla blb ble bli bll blp bls blt bpa bpb bpe bpi bpl bpp bps bpt bsa bsb bse bsi bsl bsp bss bst bta btb bte bti btl btp bts btt eaa eab eae eai eal eap eas eat eba ebb ebe ebi ebl ebp ebs ebt eea eeb eee eel eep ees eet eia eib eie eii eil eip eis eit ela elb ele eli ell elp els elt ep- epa epb epe epi epl epp eps ept es- esa esb ese esi esl esp ess est eta etb ete eti etl etp ets ett ia- iaa iab iae iai ial iap ias iat iba ibb ibe ibi ibl ibp ibs ibt ie- iea iee iei iel iep ies iet iia iib iie iii iil iip iis iit il- ila ilb ile ili ill ilp ils ilt ipa ipb ipe ipi ipl ipp ips ipt is- isa isb ise isi isl isp iss ist ita itb ite iti itl itp its itt l-p la- laa lab lae lai lal lap las lat lba lbb lbe lbi lbl lbp lbs lbt lea leb lee lei lel lep les let lia lib lie lii lil lip lis lit lla llb lle lli lll llp lls llt lpa lpb lpe lpi lpl lpp lps lpt lsa lsb lse lsi lsl lsp lss lst lta ltb lte lti ltl ltp lts ltt p-p paa pab pae pai pal pap pas pat pba pbb pbe pbi pbl pbp pbs pbt pea peb pee pei pel pep pes pet pia pib pie pii pil pip pis pit pla plb ple pli pll plp pls plt ppa ppb ppe ppi ppl ppp pps ppt ps- psa psb pse psi psl psp pss pst pt- pta ptb pte pti ptl ptp pts ptt saa sab sae sai sal sap sas sat sba sbb sbe sbi sbl sbp sbs sbt se- sea seb see sei sel sep ses set sia sib sie sii sil sip sis sit sla slb sle sli sll slp sls slt spa spb spe spi spl spp sps spt ss- ssa ssb sse ssi ssl ssp sss sst sta stb ste sti stl stp sts stt taa tab tae tai tal tap tas tat tba tbb tbe tbi tbl tbp tbs tbt te- tea teb tee tei tel tep tes tet tia tib tie tii til tip tis tit tla tle tli tll tlp tls tlt tpa tpb tpe tpi tpl tpp tps tpt tsa tsb tse tsi tsl tsp tss tst tta ttb tte tti ttl ttp tts ttt