de-err deddeh deeded deedee deeder deerth dehere derere derrer derthe deterr detete detter dreder dreher drehte erreth errett ethere ethete heddeh hedder heddre heeded heeder heehee heerde heered heeter hehehe hehheh herded herder herher herter herthe heter- hether hetter r-tree redded redder redere redred redted redthe reeded reeder rehder rehete reteed reteer reteet retere rether retree retret retted retter t-tree te-hee tedded tedder teeder teehee teerth teetee teeter teethe teheed terete terrer terret terter tertre tetede tetete tethee tether tetteh tetter theder thered theted thetee thethe threde threed threet threte thrett treder treete trehet tretee trette