a-a a-b a-i a-q aaa aab aai aan aaq aar ab- aba abb abi abn abq abr ai- aia aib aii ain aiq air an- ana anb ani ann anq anr aqa aqi aqn aqr ar- ara arb ari arn arq arr baa bab bai ban baq bar bba bbb bbi bbn bbq bbr bi- bia bib bii bin bir bna bnb bni bnn bnr bra brb bri brn brq brr ia- iaa iab iai ian iaq iar iba ibb ibi ibn ibr iia iib iii iin iir in- ina inb ini inn inq inr iqa ir- ira irb iri irn irq irr n-i naa nab nai nan nar nba nbb nbi nbn nbr nia nib nii nin niq nir nna nnb nni nnn nra nrb nri nrn nrr qaa qan qar qba qbq qin qir qnb qni qqq qra qrb qri ra- raa rab rai ran raq rar rba rbb rbi rbn rbr ria rib rii rin riq rir rna rnb rni rnn rnr rqn rra rrb rri rrn rrq rrr