-er c-- ccc cce cck ccr cct ce- cec cee cek cer cet ckc ckt crc cre crk crr crt ctc cte ctk ctr ctt ec- ecc ece eck ecr ect eec eee eek eer eet ekc eke ekr ekt erc ere erk err ert etc ete etk etr ett k-t kcc kce kck kcr kct ke- kec kee kek ker ket kkc kke kkk kkr kkt krc krk krr krt ktc kte ktk ktr ktt rcc rce rcr rct re- rec ree rek rer ret rkc rke rkk rkt rrc rrk rrr rrt rtc rte rtk rtr rtt tcc tce tck tcr tct te- tec tee tek ter tet tkc tke tkk tkr tkt trc tre trk trr trt ttc tte ttk ttr ttt

cccc ccee ccrc ccre ccrt cctc cctt cec- cece cect ceec ceke cer- cerc cere cert cet- cete ckck cker ckrc crcc crce crcr cre- crec cree cret crkc crrt crtc ctec ctrc eccc ecce ecct ecrc ecrr ect- ectc eeee eeke eerc eetc eete ekek eker eket ercc erce erec erer eret erke errc erre etcc etec etee eter etre ette kccc kcck kccr kcct kcec kcee kcet kckc kckk kckr kcrc kcrr kcrt kctc kcte keck kecr keek keer keet kekc keke ker- kerc kere kerk kerr kert ket- ketc kete ketk ketr kett kkck kkcr kkct kkkk kkrc kkre kkrk kkrr kkrt kktc kktk krcc krce krec kree krek kret krkc krke krkk krkr krrc krre krrk krrr krrt krtc krtk krtr ktcc ktce ktck ktcr ktec ktee ktek ktkc ktke ktkk ktkr ktkt ktrc ktre ktrk ktrr ktrt kttc kttk kttr kttt rccc rcet rctc recc rece reck recr rect reek reet reke rekt rere rert rete retr rett rrrr rtcc rtce rtee tccc tctc teck tecr tect teec teek teer teet teke ter- terc tere terk terr tete tetr tett trcc tre- trec tree trek tret trtc trte trtr tter tttt

-tree c-tec ccccc ccett ceere cerc- cerce cerec cerer ceret cerke cerre certe cette crece creek creer creke crete ctree cttee ecker eecke eeeee ekker erect erere erkec erte erter eteke etete etree etrek etter kecer keere kekec kerek keret kerre ketek keter kette kreek kreke krete recce recet recke rect- recte reece reere rekke rere- reree reret retee reter rette rt-rk teket tekke terce terek teret terre tert- teter tetr- tette treck treer treet trere trete trett ttttt

ceecee cerete creeke creete creket eerect errett etcetc k-tree keeker kerker kertee ketter kreker kretek r-tree reeker retece reteer reteet retere retree retret retter t-tree teetee teeter tercer tercet terete terrer terret terter tertre tetete tetter tr-rec treck- treece treete treker tretee trette

cert-ee crecket crekett ekekete erecter kee-kee kreeker reerect reteere reterre retrete rettert tec-tec terere terreer terrere tettete trecker treetee trekker trettre

cekerek ketterer recetter teketeke

keek-keek

cerre-tree

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