a-a a-b a-i aaa aab aad aag aai aan aao aar ab- aba abb abd abg abi abn abo abr ad- ada adb add adg adi adn ado adr ag- aga agb agd agg agi agn ago agr ai- aia aib aid aig aii ain aio air an- ana anb and ang ani ann ano anr aoa aob aod aog aoi aon aoo aor ar- ara arb ard arg ari arn aro arr baa bab bad bag bai ban bao bar bba bbb bbd bbg bbi bbn bbo bbr bda bdb bdd bdg bdi bdo bdr bga bgb bgd bgg bgi bgn bgo bgr bi- bia bib bid big bii bin bio bir bna bnb bnd bng bni bnn bno bnr boa bob bod bog boi bon boo bor bra brb brd brg bri brn bro brr daa dab dad dag dai dan dao dar dba dbb dbd dbg dbi dbn dbo dbr dda ddb ddd ddg ddi ddn ddo ddr dga dgd dgg dgi dgn dgr di- dia dib did dig dii din dio dir dna dnb dnd dng dni dnn dno dnr doa dob dod dog doi don doo dor dra drb drd drg dri drn dro drr g-d gaa gab gad gag gai gan gao gar gba gbd gbg gbi gbn gbo gbr gda gdb gdd gdi gdn gdo gdr gga ggb ggd ggg ggi ggn ggo ggr gia gib gid gig gii gin gio gir gna gnb gnd gni gnn gno gnr goa gob god gog goi gon goo gor gra grb grd grg gri grn gro grr i-d ia- iaa iab iad iag iai ian iao iar iba ibb ibd ibg ibi ibn ibo ibr ida idb idd idg idi idn ido idr iga igb igd igg igi ign igo igr iia iib iid iii iin iio iir in- ina inb ind ing ini inn ino inr io- ioa iob iod iog ioi ion ioo ior ir- ira irb ird irg iri irn iro irr n-i naa nab nad nag nai nan nao nar nba nbb nbd nbg nbi nbn nbo nbr nda ndb ndd ndg ndi ndn ndo ndr nga ngb ngd ngg ngi ngn ngo nia nib nid nig nii nin nio nir nna nnb nng nni nnn nno no- noa nob nod nog noi non noo nor nra nrb nrd nrg nri nrn nro nrr o-i oaa oab oad oag oai oan oao oar ob- oba obb obd obg obi obn obo obr oda odb odd odg odi odn odo odr oga ogd ogg ogi ogn ogo oia oib oid oii oin oio oir on- ona onb ond ong oni onn ono onr oo- ooa oob ood oog ooi oon ooo oor or- ora orb ord org ori orn oro orr ra- raa rab rad rag rai ran rao rar rba rbb rbd rbg rbi rbn rbo rbr rda rdb rdd rdg rdi rdn rdo rdr rga rgb rgd rgg rgi rgn rgo rgr ria rib rid rig rii rin rio rir rna rnb rnd rng rni rnn rno rnr roa rob rod rog roi ron roo ror rra rrb rrd rrg rri rrn rrr