-er a-a a-c a-q aaa aac aae aah aaq aar aas ac- aca acc ace ach acq acr acs aea aec aee aeh aeq aer aes aha ahc ahe ahh ahq ahr ahs aqa aqc aqr aqs ar- ara arc are arh arq arr ars as- asa asc ase ash asq asr ass c-- caa cac cae cah caq car cas cca ccc cce cch ccr ccs ce- cea cec cee ceh ceq cer ces ch- cha chc che chh chq chr chs cqa cqc cqs cra crc cre crh crq crr crs csa csc cse csh csq csr css eaa eac eae eah ear eas ec- eca ecc ece ech ecq ecr ecs eea eec eee eer ees eha ehc ehe ehh ehr ehs eqa eqe eqq eqs era erc ere erh erq err ers es- esa esc ese esh esq esr ess haa hac hae hah haq har has hca hcc hce hch hcr hcs he- hea hec hee heh her hes hha hhc hhe hhh hhr hhs hqs hr- hra hrc hre hrh hrr hrs hsa hsc hse hsh hsq hsr hss qaa qac qah qar qas qca qcc qcs qec qee qeh qhc qhs qqq qra qrc qre qrh qrs qsa qsc qsr ra- raa rac rae rah raq rar ras rca rcc rce rch rcr rcs re- rea rec ree reh req rer res rh- rha rhc rhe rhh rhr rhs rqc rqs rra rrc rrh rrq rrr rrs rsa rsc rse rsh rsq rsr rss saa sac sae sah saq sar sas sca scc sce sch scr scs se- sea sec see seh seq ser ses sh- sha shc she shh shr shs sqa sqq sqr sqs sr- sra src sre srh srq srr srs ss- ssa ssc sse ssh ssq ssr sss