a-a a-i aaa aad aai aan aap aar ad- ada add adi adn adp adr ai- aia aid aii ain aip air an- ana and ani ann anp anr ap- apa apd api apn app apr ar- ara ard ari arn arp arr daa dad dai dan dap dar dda ddd ddi ddn ddp ddr di- dia did dii din dip dir dna dnd dni dnn dnp dnr dpa dpd dpi dpn dpp dpr dra drd dri drn drp drr i-d ia- iaa iad iai ian iap iar ida idd idi idn idp idr iia iid iii iin iip iir in- ina ind ini inn inp inr ipa ipd ipi ipn ipp ipr ir- ira ird iri irn irp irr n-i naa nad nai nan nap nar nda ndd ndi ndn ndp ndr nia nid nii nin nip nir nna nni nnn nnp npa npd npi npn npp npr nra nrd nri nrn nrp nrr p-p paa pad pai pan pap par pda pdd pdi pdn pdp pdr pia pid pii pin pip pir pn- pna pnd pni pnn pnp pnr ppa ppd ppi ppn ppp ppr pra prd pri prn prp prr ra- raa rad rai ran rap rar rda rdd rdi rdn rdp rdr ria rid rii rin rip rir rna rnd rni rnn rnp rnr rpa rpd rpi rpn rpp rpr rra rrd rri rrn rrp rrr