a-a a-i aaa aai aan aao aap aar ai- aia aii ain aio aip air an- ana ani ann ano anp anr aoa aoi aon aoo aop aor ap- apa api apn apo app apr ar- ara ari arn aro arp arr ia- iaa iai ian iao iap iar iia iii iin iio iip iir in- ina ini inn ino inp inr io- ioa ioi ion ioo iop ior ipa ipi ipn ipo ipp ipr ir- ira iri irn iro irp irr n-i naa nai nan nao nap nar nia nii nin nio nip nir nna nni nnn nno nnp no- noa noi non noo nop nor npa npi npn npo npp npr nra nri nrn nro nrp nrr o-i oaa oai oan oao oap oar oia oii oin oio oip oir on- ona oni onn ono onp onr oo- ooa ooi oon ooo oop oor op- opa opi opn opo opp opr or- ora ori orn oro orp orr p-p paa pai pan pao pap par pia pii pin pio pip pir pn- pna pni pnn pno pnp pnr poa poi pon poo pop por ppa ppi ppn ppo ppp ppr pra pri prn pro prp prr ra- raa rai ran rao rap rar ria rii rin rio rip rir rna rni rnn rno rnp rnr roa roi ron roo rop ror rpa rpi rpn rpo rpp rpr rra rri rrn rrp rrr