-ic a-a a-c a-i aaa aac aah aai aao aap aar aax ac- aca acc ach aci aco acp acr acx aha ahc ahh ahi aho ahp ahr ahx ai- aia aic aih aii aio aip air aix aoa aoc aoh aoi aoo aop aor aox ap- apa apc aph api apo app apr apx ar- ara arc arh ari aro arp arr arx ax- axa axh axi axo axp axr axx c-- caa cac cah cai cao cap car cax cca ccc cch cci cco ccp ccr ccx ch- cha chc chh chi cho chp chr chx ci- cia cic cih cii cio cip cir cix co- coa coc coh coi coo cop cor cox cpa cpc cph cpi cpo cpp cpr cpx cra crc crh cri cro crp crr crx cxc cxh cxi cxo cxp cxr cxx h-i haa hac hah hai hao hap har hax hca hcc hch hci hco hcp hcr hha hhc hhh hhi hho hhp hhr hia hic hih hii hio hip hir hix hoa hoc hoh hoi hoo hop hor hox hpa hpc hph hpi hpo hpp hpr hr- hra hrc hrh hri hro hrp hrr hxc ia- iaa iac iah iai iao iap iar ica icc ich ici ico icp icr iha ihc ihh ihi iho ihp ihr iia iic iih iii iio iip iir iix io- ioa ioc ioh ioi ioo iop ior ipa ipc ipi ipo ipp ipr ipx ir- ira irc iri iro irp irr irx ixc ixi o-i oaa oac oah oai oao oap oar oax oc- oca occ och oci oco ocp ocr ocx oha ohc ohh ohi oho ohp ohr oia oic oii oio oip oir oo- ooa ooc ooh ooi ooo oop oor oox op- opa opc oph opi opo opp opr opx or- ora orc orh ori oro orp orr orx ox- oxa oxc oxi oxo oxx p-p paa pac pah pai pao pap par pax pca pcc pch pci pco pcp pcr pcx pha phc phi pho php phr phx pia pic pih pii pio pip pir pix poa poc poh poi poo pop por pox ppa ppc pph ppi ppo ppp ppr ppx pra prc prh pri pro prp prr prx pxc pxr ra- raa rac rah rai rao rap rar rax rca rcc rch rci rco rcp rcr rcx rh- rha rhc rhh rhi rho rhp rhr ria ric rih rii rio rip rir rix roa roc roh roi roo rop ror rox rpa rpc rph rpi rpo rpp rpr rpx rra rrc rrh rri rrp rrr rxp rxr xaa xac xap xar xch xci xcp xcr xcx xhp xia xic xii xio xix xoa xoc xoi xoo xop xor xox xpa xpc xpo xpp xrc xrx xxi xxo xxp xxx