-er a-a a-b a-i aaa aab aad aae aah aai aak aan aar ab- aba abb abd abe abh abi abk abn abr ad- ada adb add ade adh adi adk adn adr aea aeb aed aee aeh aei aek aen aer aha ahb ahd ahe ahh ahi ahk ahn ahr ai- aia aib aid aie aih aii aik ain air aka akb akd ake akh aki akk akn akr an- ana anb and ane anh ani ank ann anr ar- ara arb ard are arh ari ark arn arr baa bab bad bae bah bai bak ban bar bba bbb bbd bbe bbh bbi bbk bbn bbr bda bdb bdd bde bdh bdi bdk bdr be- bea beb bed bee beh bei bek ben ber bha bhb bhd bhe bhh bhi bhk bhr bi- bia bib bid bie bih bii bik bin bir bka bkb bke bkk bkn bkr bna bnb bnd bne bni bnk bnn bnr bra brb brd bre brh bri brk brn brr daa dab dad dae dah dai dak dan dar dba dbb dbd dbe dbh dbi dbk dbn dbr dda ddb ddd dde ddh ddi ddk ddn ddr de- dea deb ded dee deh dei dek den der dh- dha dhb dhd dhe dhh dhi dhk dhr di- dia dib did die dih dii dik din dir dka dkb dke dki dkk dkr dna dnb dnd dne dnh dni dnk dnn dnr dra drb drd dre dri drk drn drr eaa eab ead eae eah eai eak ean ear eba ebb ebd ebe ebh ebi ebk ebn ebr ed- eda edb edd ede edh edi edk edn edr eea eeb eed eee eek een eer eha ehb ehd ehe ehh ehi ehn ehr eia eib eid eie eii eik ein eir eka ekb ekd eke ekh eki ekr en- ena enb end ene enh eni enk enn enr era erb erd ere erh eri erk ern err h-i haa hab had hae hah hai hak han har hba hbb hbd hbe hbh hbi hbk hbn hbr hda hdb hdd hde hdh hdi hdk hdn hdr he- hea heb hed hee heh hei hek hen her hha hhb hhd hhe hhh hhi hhk hhn hhr hia hib hid hie hih hii hik hin hir hka hkb hkd hkh hki hkk hkn hkr hna hnb hnd hne hnh hnk hnn hr- hra hrb hrd hre hrh hri hrk hrn hrr i-d ia- iaa iab iad iae iah iai ian iar iba ibb ibd ibe ibh ibi ibk ibn ibr ida idb idd ide idh idi idk idn idr ie- iea ied iee iei iek ien ier iha ihb ihd ihe ihh ihi ihk ihn ihr iia iib iid iie iih iii iin iir ika ikb ike iki ikk ikr in- ina inb ind ine inh ini ink inn inr ir- ira irb ird ire iri irk irn irr ka- kaa kab kad kae kah kai kak kan kar kba kbb kbd kbe kbh kbi kbk kbn kbr kda kdb kde kdh kdk kdr ke- kea keb ked kee keh kei kek ken ker kha khe khh khi khk khn khr kia kib kid kie kih kii kik kin kir kkb kke kkh kki kkk kkn kkr kn- kna knd kne kni knk knn knr kra krd kri krk krn krr n-i naa nab nad nae nah nai nak nan nar nba nbb nbd nbe nbi nbk nbn nbr nda ndb ndd nde ndh ndi ndk ndn ndr ne- nea neb ned nee neh nei nek nen ner nha nhb nhd nhe nhh nhi nhk nhn nhr nia nib nid nie nih nii nik nin nir nka nke nki nkk nkn nkr nna nnb nne nnh nni nnk nnn nra nrb nrd nre nri nrk nrn nrr ra- raa rab rad rae rah rai rak ran rar rba rbb rbd rbe rbh rbi rbk rbn rbr rda rdb rdd rde rdh rdi rdn rdr re- rea reb red ree reh rei rek ren rer rh- rha rhb rhd rhe rhh rhi rhn rhr ria rib rid rie rih rii rik rin rir rkb rke rkk rna rnb rnd rnh rni rnn rnr rra rrb rrd rrh rri rrk rrn rrr