b-tree bbbbbb bedded bedder bedebt beebee beedee beeped beeper beerde beeter berbee berber berede bereet berere berrer berret bertre betere betete betted bettee better bexter bredde breded breder breede breere brette ceecee cerete crd-bp creede creete creped ctcpec dbette de-err debdeb debece debere debert debete debret debted debtee decede decerp decred decree deeded deedee deeder deeper depere depper depree derect derere derped derrer detect deterr detete detext detter dexter dextr- dextre dreder drepte drpdre e-text ebbert eebree eerect erbree errett etcetc excede exceed except excerp excrex exerce exeter expect expede expeed expert pberet pebete pedder peeced peedee peeped peepee peeper peerce peered peerer peeter peetre pepped pepper percee percer perere perper perpet perree perret perrex perter pertex pertre pet-ct petbed peteet peterd petree petrer petted petter pettet pppppp ppt-db preece preede prepex preter pretex pretre prette r-tree rebbec rebred recbcd recced recede receed recept redbed redded redder redere redred redted reeded reeder reeper repete repped repper repted retece reteed reteer reteet retere retree retret retted retter t-tree tedded tedder teebee teeder teepee teetee teeter tepece tepper tercer tercet terete terped terper terrer terret terrex terter tertre tetede tetete tetter texted texter tr-rec trebce treder treece treete treppe tretee trette x-tree xerept xerert