a-a a-b a-i aaa aab aad aah aai aan aao aar ab- aba abb abd abh abi abn abo abr ad- ada adb add adh adi adn ado adr aha ahb ahd ahh ahi ahn aho ahr ai- aia aib aid aih aii ain aio air an- ana anb and anh ani ann ano anr aoa aob aod aoh aoi aon aoo aor ar- ara arb ard arh ari arn aro arr baa bab bad bah bai ban bao bar bba bbb bbd bbh bbi bbn bbo bbr bda bdb bdd bdh bdi bdo bdr bha bhb bhd bhh bhi bho bhr bi- bia bib bid bih bii bin bio bir bna bnb bnd bni bnn bno bnr boa bob bod boh boi bon boo bor bra brb brd brh bri brn bro brr daa dab dad dah dai dan dao dar dba dbb dbd dbh dbi dbn dbo dbr dda ddb ddd ddh ddi ddn ddo ddr dh- dha dhb dhd dhh dhi dho dhr di- dia dib did dih dii din dio dir dna dnb dnd dnh dni dnn dno dnr doa dob dod doh doi don doo dor dra drb drd dri drn dro drr h-i haa hab had hah hai han hao har hba hbb hbd hbh hbi hbn hbo hbr hda hdb hdd hdh hdi hdn hdo hdr hha hhb hhd hhh hhi hhn hho hhr hia hib hid hih hii hin hio hir hna hnb hnd hnh hnn hno hoa hob hod hoh hoi hon hoo hor hr- hra hrb hrd hrh hri hrn hro hrr i-d ia- iaa iab iad iah iai ian iao iar iba ibb ibd ibh ibi ibn ibo ibr ida idb idd idh idi idn ido idr iha ihb ihd ihh ihi ihn iho ihr iia iib iid iih iii iin iio iir in- ina inb ind inh ini inn ino inr io- ioa iob iod ioh ioi ion ioo ior ir- ira irb ird iri irn iro irr n-i naa nab nad nah nai nan nao nar nba nbb nbd nbi nbn nbo nbr nda ndb ndd ndh ndi ndn ndo ndr nha nhb nhd nhh nhi nhn nhr nia nib nid nih nii nin nio nir nna nnb nnh nni nnn nno no- noa nob nod noh noi non noo nor nra nrb nrd nri nrn nro nrr o-i oaa oab oad oah oai oan oao oar ob- oba obb obd obh obi obn obo obr oda odb odd odh odi odn odo odr oha ohd ohh ohi ohn oho ohr oia oib oid oii oin oio oir on- ona onb ond onh oni onn ono onr oo- ooa oob ood ooh ooi oon ooo oor or- ora orb ord orh ori orn oro orr ra- raa rab rad rah rai ran rao rar rba rbb rbd rbh rbi rbn rbo rbr rda rdb rdd rdh rdi rdn rdo rdr rh- rha rhb rhd rhh rhi rhn rho rhr ria rib rid rih rii rin rio rir rna rnb rnd rnh rni rnn rno rnr roa rob rod roh roi ron roo ror rra rrb rrd rrh rri rrn rrr