-er bbb bbe bbi bbk bbn bbr bbt be- beb bee bei bek ben ber bet bi- bib bie bii bik bin bir bit bkb bke bkk bkn bkr bkt bnb bne bni bnk bnn bnr bnt brb bre bri brk brn brr brt btb bte bti btk btn btr btt ebb ebe ebi ebk ebn ebr ebt eeb eee eek een eer eet eib eie eii eik ein eir eit ekb eke eki ekr ekt en- enb ene eni enk enn enr ent erb ere eri erk ern err ert etb ete eti etk etn etr ett ibb ibe ibi ibk ibn ibr ibt ie- iee iei iek ien ier iet iib iie iii iin iir iit ikb ike iki ikk ikr ikt in- inb ine ini ink inn inr int ir- irb ire iri irk irn irr irt itb ite iti itk itn itt k-t kbb kbe kbi kbk kbn kbr ke- keb kee kei kek ken ker ket kib kie kii kik kin kir kit kkb kke kki kkk kkn kkr kkt kn- kne kni knk knn knr knt kri krk krn krr krt ktb kte ktk ktn ktr ktt n-i nbb nbe nbi nbk nbn nbr nbt ne- neb nee nei nek nen ner net nib nie nii nik nin nir nit nke nki nkk nkn nkr nkt nnb nne nni nnk nnn nnt nrb nre nri nrk nrn nrr nrt ntb nte nti ntk ntn ntr ntt rbb rbe rbi rbk rbn rbr rbt re- reb ree rei rek ren rer ret rib rie rii rik rin rir rit rkb rke rkk rkt rnb rni rnn rnr rnt rrb rri rrk rrn rrr rrt rtb rte rti rtk rtn rtr rtt tbb tbe tbi tbk tbn tbr tbt te- teb tee tei tek ten ter tet tib tie tii tik tin tir tit tkb tke tkk tkr tkt tnb tne tni tnk tnn tnr tnt trb tre tri trk trn trr trt ttb tte tti ttk ttn ttr ttt

-ene -ine -nik bbbb bbeb bbet bbin bebb bebe bebi beeb beek been beer beet beik bein beir beit beke beki bene beni benk benn bent bere beri berk bern berr bert bete beti bett bibb bibe bibi bieb bien bier biet biin bike bin- bine bini bink binn bint birb bire biri birk birn birr birt bite bitt bner bnet bnib bnin bnrr breb bree brei brek bren brer bret brie brik brin brit brkb brrr btek bten btie btrt bttb ebbr eben eber ebit eeee eeke eent eete eiei eien eier eike eiki eine eini eink eire eirn eitb eiti eitr ekeb ekek eken eker eket ekki ekne enb- enbn enbr enee ener enik enin enit enke enki enkr enne enni enri ent- ente entr erbb erbe ereb erei eren erer eret erie erik erin erit erke erki erne erni erre etbr etee eten eter etik etin etne etnr etre ette etti ettn i-be ibet ibie ibri ibtb ieet ieie ient iere ieri iett iiie iiii iiit iitr iitt ikee iken iker ikin ikki ikri inbe inee inek inet init inke inki inne inni innr inre inri inti intn intr irbe iree iren irer iri- irie irin irki irne irre irri irte irti itbe itek iten iter itet itie itin itri kbbb kbbe kbbi kbbk kbbr kbbt kbeb kbee kbek kben kber kbet kbib kbie kbik kbit kbkb kbkk kbkr kbnn kbnr kbrb kbre kbri kbrk kbrn kbrt kbtb kbte kbtk kbtn kbtr kbtt kebb kebe kebi kebn kebr kebt keek keen keer keet keib keii keik kein keir kekb keke keki ken- kene keni kenk kenn kenr kent ker- kerb kere keri kerk kern kerr kert ket- kete keti ketk ketr kett kibb kibe kibi kibr kibt kien kier kiii kiik kiit kiki kikk kikr kikt kin- kinb kine kini kink kinn kint kirb kiri kirk kirn kirr kirt kite kiti kitn kitr kitt kkbb kkbe kkbi kkbn kkbr kkbt kken kkik kkin kkit kkkk kknb kkne kkni kknn kknt kkrb kkre kkrk kkrn kkrr kkrt kktk knbb knbe knbn knbr knbt kneb knee knek knen knet knib knie knik knin knir knit knki knkk knkt knnb knnk knnr knrb knrk knte knti kntk kntn kntr krbb krbe krbi krbk krbr krbt kreb kree krei krek kren kret krib krik krin krit krke krki krkk krkn krkr krnb krne krni krnk krnn krnt krrb krre krri krrk krrn krrr krrt krti krtk krtn krtr ktbb ktbn ktbr ktbt ktee ktek kten ktib ktie ktik ktkb ktke ktkk ktkn ktkr ktkt ktne ktnk ktnn ktnt ktrb ktre ktri ktrk ktrn ktrr ktrt ktti kttk kttn kttr kttt n-ii nber nbti nebb nebe nebn nebr neeb neei neen neer neet nein neir neit neke nene neni nent nere neri nerk nerr nert net- netb nete neti nett nibe nibi nien nier niet niir niit nike niki nine nini nire nirt nitb nite niti nitr nknt nktr nnit nnnn nntn nren nter nttr rbbb rbbr rebb rebe rebk reeb reek reen reet reii reik rein reir reit reke reki rekt rene reni renk renn rent rere reri rert rete reti retr rett rib- ribe riek rien rier riet riin rike riki rikk rine rink rinn rire riri rite riti ritt rnbr rnie rnin rnnt rrrr rtee rtei rtkn tbit tbrb teek teen teer teet teie tein teir teke tenb tene teni tenk tenn tent ter- tere teri terk tern terr tete teti tetr tett tibi tie- tiee tiei tien tier tiet tiit tike tiki tine tini tink tinn tint tirb tire tiri tirr tite titi titt tneb tnik tre- tree trei trek tren tret tri- trib trie trik trin trit trte trtr ttbb tten tter tttt

-tree b-r-k bbbee be-er be-in bebek beber bebti beebe beeke beene beeri beete beibi beien beier beine beire beite beken beker bekin bekir bekke bekti bene- benet benin benit benke benne benni berbe berei berek beren beret berie berin berit berk- berke berne bernt berre berri berte berti betee beten