-er -ic a-a a-c a-i aaa aac aae aah aai aao aap aar aas ac- aca acc ace ach aci aco acp acr acs aea aec aee aeh aei aeo aep aer aes aha ahc ahe ahh ahi aho ahp ahr ahs ai- aia aic aie aih aii aio aip air ais aoa aoc aoe aoh aoi aoo aop aor aos ap- apa apc ape aph api apo app apr aps ar- ara arc are arh ari aro arp arr ars as- asa asc ase ash asi aso asp asr ass c-- caa cac cae cah cai cao cap car cas cca ccc cce cch cci cco ccp ccr ccs ce- cea cec cee ceh cei ceo cep cer ces ch- cha chc che chh chi cho chp chr chs ci- cia cic cie cih cii cio cip cir cis co- coa coc coe coh coi coo cop cor cos cpa cpc cpe cph cpi cpo cpp cpr cps cra crc cre crh cri cro crp crr crs csa csc cse csh csi cso csp csr css eaa eac eae eah eai eao eap ear eas ec- eca ecc ece ech eci eco ecr ecs eea eec eee eeo eep eer ees eha ehc ehe ehh ehi eho ehp ehr ehs eia eic eie eii eio eip eir eis eo- eoa eoc eoe eoh eoi eoo eop eor eos ep- epa epc epe eph epi epo epp epr eps era erc ere erh eri ero erp err ers es- esa esc ese esh esi eso esp esr ess h-i haa hac hae hah hai hao hap har has hca hcc hce hch hci hco hcp hcr hcs he- hea hec hee heh hei heo hep her hes hha hhc hhe hhh hhi hho hhp hhr hhs hia hic hie hih hii hio hip hir his hoa hoc hoe hoh hoi hoo hop hor hos hpa hpc hpe hph hpi hpo hpp hpr hps hr- hra hrc hre hrh hri hro hrp hrr hrs hsa hsc hse hsh hsi hsp hsr hss ia- iaa iac iae iah iai iao iap iar ias ica icc ice ich ici ico icp icr ics ie- iea iec iee iei iep ier ies iha ihc ihe ihh ihi iho ihp ihr ihs iia iic iie iih iii iio iip iir iis io- ioa ioc ioe ioh ioi ioo iop ior ios ipa ipc ipe ipi ipo ipp ipr ips ir- ira irc ire iri iro irp irr irs is- isa isc ise ish isi iso isp isr iss o-i oaa oac oae oah oai oao oap oar oas oc- oca occ och oci oco ocp ocr ocs oea oec oee oeh oei oeo oep oer oes oha ohc ohe ohh ohi oho ohp ohr ohs oia oic oie oii oio oip oir ois oo- ooa ooc ooh ooi ooo oop oor oos op- opa opc ope oph opi opo opp opr ops or- ora orc ore orh ori oro orp orr ors os- osa osc ose osh osi oso osp osr oss p-p paa pac pae pah pai pao pap par pas pca pcc pce pch pci pco pcp pcr pcs pea pec pee peh pei peo pep per pes pha phc phe phi pho php phr phs pia pic pie pih pii pio pip pir pis poa poc poe poh poi poo pop por pos ppa ppc ppe pph ppi ppo ppp ppr pps pra prc pre prh pri pro prp prr prs ps- psa psc pse psh psi pso psp psr pss ra- raa rac rae rah rai rao rap rar ras rca rcc rce rch rci rco rcp rcr rcs re- rea rec ree reh rei reo rep rer res rh- rha rhc rhe rhh rhi rho rhp rhr rhs ria ric rie rih rii rio rip rir ris roa roc roe roh roi roo rop ror ros rpa rpc rpe rph rpi rpo rpp rpr rps rra rrc rrh rri rrp rrr rrs rsa rsc rse rsh rsi rso rsp rsr rss saa sac sae sah sai sao sap sar sas sca scc sce sch sci sco scp scr scs se- sea sec see seh sei seo sep ser ses sh- sha shc she shh shi sho shp shr shs sia sic sie sih sii sio sip sir sis soa soc soe soh soi soo sop sor sos spa spc spe sph spi spo spp spr sps sr- sra src sre srh sri sro srp srr srs ss- ssa ssc sse ssh ssi sso ssp ssr sss