-er -th a-a a-b a-i a-t aaa aab aae aah aai aao aap aar aas aat ab- aba abb abe abh abi abo abp abr abs abt aea aeb aee aeh aei aeo aep aer aes aet aha ahb ahe ahh ahi aho ahp ahr ahs aht ai- aia aib aie aih aii aio aip air ais ait aoa aob aoe aoh aoi aoo aop aor aos aot ap- apa apb ape aph api apo app apr aps apt ar- ara arb are arh ari aro arp arr ars art as- asa asb ase ash asi aso asp asr ass ast at- ata atb ate ath ati ato atp atr ats att b-p baa bab bae bah bai bao bap bar bas bat bba bbb bbe bbh bbi bbo bbp bbr bbs bbt be- bea beb bee beh bei beo bep ber bes bet bha bhb bhe bhh bhi bho bhp bhr bhs bht bi- bia bib bie bih bii bio bip bir bis bit boa bob boe boh boi boo bop bor bos bot bpa bpb bpe bph bpi bpo bpp bpr bps bpt bra brb bre brh bri bro brp brr brs brt bsa bsb bse bsh bsi bso bsp bsr bss bst bta btb bte bth bti bto btp btr bts btt eaa eab eae eah eai eao eap ear eas eat eba ebb ebe ebh ebi ebo ebp ebr ebs ebt eea eeb eee eeo eep eer ees eet eha ehb ehe ehh ehi eho ehp ehr ehs eht eia eib eie eii eio eip eir eis eit eo- eoa eob eoe eoh eoi eoo eop eor eos eot ep- epa epb epe eph epi epo epp epr eps ept era erb ere erh eri ero erp err ers ert es- esa esb ese esh esi eso esp esr ess est eta etb ete eth eti eto etp etr ets ett h-i haa hab hae hah hai hao hap har has hat hba hbb hbe hbh hbi hbo hbp hbr hbs hbt he- hea heb hee heh hei heo hep her hes het hha hhb hhe hhh hhi hho hhp hhr hhs hht hia hib hie hih hii hio hip hir his hit hoa hob hoe hoh hoi hoo hop hor hos hot hpa hpb hpe hph hpi hpo hpp hpr hps hpt hr- hra hrb hre hrh hri hro hrp hrr hrs hrt hsa hsb hse hsh hsi hsp hsr hss hst hta htb hte hth hti hto htp htr hts htt ia- iaa iab iae iah iai iao iap iar ias iat iba ibb ibe ibh ibi ibo ibp ibr ibs ibt ie- iea iee iei iep ier ies iet iha ihb ihe ihh ihi iho ihp ihr ihs iht iia iib iie iih iii iio iip iir iis iit io- ioa iob ioe ioh ioi ioo iop ior ios iot ipa ipb ipe ipi ipo ipp ipr ips ipt ir- ira irb ire iri iro irp irr irs irt is- isa isb ise ish isi iso isp isr iss ist ita itb ite ith iti ito itp its itt o-i oaa oab oae oah oai oao oap oar oas oat ob- oba obb obe obh obi obo obp obr obs obt oea oeb oee oeh oei oeo oep oer oes oet oha ohe ohh ohi oho ohp ohr ohs oht oia oib oie oii oio oip oir ois oit oo- ooa oob ooh ooi ooo oop oor oos oot op- opa opb ope oph opi opo opp opr ops opt or- ora orb ore orh ori oro orp orr ors ort os- osa osb ose osh osi oso osp osr oss ost ot- ota otb ote oth oti oto otp otr ots ott p-p paa pab pae pah pai pao pap par pas pat pba pbb pbe pbi pbo pbp pbr pbs pbt pea peb pee peh pei peo pep per pes pet pha phb phe phi pho php phr phs pht pia pib pie pih pii pio pip pir pis pit poa pob poe poh poi poo pop por pos pot ppa ppb ppe pph ppi ppo ppp ppr pps ppt pra prb pre prh pri pro prp prr prs prt ps- psa psb pse psh psi pso psp psr pss pst pt- pta ptb pte pth pti pto ptp ptr pts ptt ra- raa rab rae rah rai rao rap rar ras rat rba rbb rbe rbh rbi rbo rbp rbr rbs rbt re- rea reb ree reh rei reo rep rer res ret rh- rha rhb rhe rhh rhi rho rhp rhr rhs rht ria rib rie rih rii rio rip rir ris rit roa rob roe roh roi roo rop ror ros rot rpa rpb rpe rph rpi rpo rpp rpr rps rpt rra rrb rrh rri rrp rrr rrs rrt rsa rsb rse rsh rsi rso rsp rsr rss rst rta rtb rte rti rto rtp rtr rts rtt saa sab sae sah sai sao sap sar sas sat sba sbb sbe sbh sbi sbo sbp sbr sbs sbt se- sea seb see seh sei seo sep ser ses set sh- sha shb she shh shi sho shp shr shs sht sia sib sie sih sii sio sip sir sis sit soa sob soe soh soi soo sop sor sos sot spa spb spe sph spi spo spp spr sps spt sr- sra srb sre srh sri sro srp srr srs srt ss- ssa ssb sse ssh ssi sso ssp ssr sss sst sta stb ste sth sti sto stp str sts stt taa tab tae tah tai tao tap tar tas tat tba tbb tbe tbh tbi tbo tbp tbr tbs tbt te- tea teb tee teh tei teo tep ter tes tet th- tha thb the thh thi tho thp thr ths tht tia tib tie tih tii tio tip tir tis tit to- toa tob toe toh toi too top tor tos tot tpa tpb tpe tph tpi tpo tpp tpr tps tpt tra trb