a-a a-i aaa aad aai aan aap ad- ada add adi adn adp ai- aia aid aii ain aip an- ana and ani ann anp ap- apa apd api apn app daa dad dai dan dap dda ddd ddi ddn ddp di- dia did dii din dip dna dnd dni dnn dnp dpa dpd dpi dpn dpp i-d ia- iaa iad iai ian iap ida idd idi idn idp iia iid iii iin iip in- ina ind ini inn inp ipa ipd ipi ipn ipp n-i naa nad nai nan nap nda ndd ndi ndn ndp nia nid nii nin nip nna nni nnn nnp npa npd npi npn npp p-p paa pad pai pan pap pda pdd pdi pdn pdp pia pid pii pin pip pn- pna pnd pni pnn pnp ppa ppd ppi ppn ppp