a-a a-b a-i a-q aaa aab aai aan aaq aar aau ab- aba abb abi abn abq abr abu ai- aia aib aii ain aiq air aiu an- ana anb ani ann anq anr anu aqa aqi aqn aqr ar- ara arb ari arn arq arr aru au- aua aub aui aun aur b-u baa bab bai ban baq bar bau bba bbb bbi bbn bbq bbr bbu bi- bia bib bii bin bir biu bna bnb bni bnn bnr bnu bra brb bri brn brq brr bru bua bub bui bun bur buu ia- iaa iab iai ian iaq iar iau iba ibb ibi ibn ibr ibu iia iib iii iin iir iiu in- ina inb ini inn inq inr inu iqa iqu ir- ira irb iri irn irq irr iru iu- iua iub iui iur n-i naa nab nai nan nar nau nba nbb nbi nbn nbr nbu nia nib nii nin niq nir niu nna nnb nni nnn nnu nra nrb nri nrn nrr nru nua nub nui nun nuq nur nuu qaa qan qar qau qba qbq qin qir qiu qnb qni qqq qqu qra qrb qri qru qu- qua qui qur ra- raa rab rai ran raq rar rau rba rbb rbi rbn rbr rbu ria rib rii rin riq rir rna rnb rni rnn rnr rnu rqn rra rrb rri rrn rrq rrr rru rua rub rui run rur ruu ua- uaa uab uai uan uaq uar uau uba ubb ubi ubn ubr ubu uia uib uii uin uiq uir uiu un- una unb uni unn unq unr unu ur- ura urb uri urn urr uru uua uun uur uuu