-er -th a-a a-b a-q a-t aaa aab aae aah aao aaq aar aat ab- aba abb abe abh abo abq abr abt aea aeb aee aeh aeo aeq aer aet aha ahb ahe ahh aho ahq ahr aht aoa aob aoe aoh aoo aor aot aqa aqo aqr aqt ar- ara arb are arh aro arq arr art at- ata atb ate ath ato atr att baa bab bae bah bao baq bar bat bba bbb bbe bbh bbo bbq bbr bbt be- bea beb bee beh beo beq ber bet bha bhb bhe bhh bho bhq bhr bht boa bob boe boh boo boq bor bot bqe bqt bra brb bre brh bro brq brr brt bta btb bte bth bto btq btr btt eaa eab eae eah eao ear eat eba ebb ebe ebh ebo ebq ebr ebt eea eeb eee eeo eer eet eha ehb ehe ehh eho ehr eht eo- eoa eob eoe eoh eoo eoq eor eot eqa eqe eqq eqt era erb ere erh ero erq err ert eta etb ete eth eto etr ett haa hab hae hah hao haq har hat hba hbb hbe hbh hbo hbr hbt he- hea heb hee heh heo her het hha hhb hhe hhh hho hhr hht hoa hob hoe hoh hoo hor hot hr- hra hrb hre hrh hro hrr hrt hta htb hte hth hto htr htt oaa oab oae oah oao oaq oar oat ob- oba obb obe obh obo obr obt oea oeb oee oeh oeo oer oet oha ohe ohh oho ohq ohr oht oo- ooa oob ooh ooo oor oot oqb oqo or- ora orb ore orh oro orr ort ot- ota otb ote oth oto otr ott qaa qah qar qat qba qbe qbq qee qeh qeo qet qoo qor qqq qra qrb qre qrh qrt qta qto qtq qtr ra- raa rab rae rah rao raq rar rat rba rbb rbe rbh rbo rbr rbt re- rea reb ree reh reo req rer ret rh- rha rhb rhe rhh rho rhr rht roa rob roe roh roo ror rot rra rrb rrh rrq rrr rrt rta rtb rte rto rtq rtr rtt taa tab tae tah tao taq tar tat tba tbb tbe tbh tbo tbr tbt te- tea teb tee teh teo teq ter tet th- tha thb the thh tho thq thr tht to- toa tob toe toh too toq tor tot tqo tra trb tre trh tro trq trr trt tta ttb tte tth tto ttr ttt