-tree bbbee be-er beber beche beebe beech beete beeth beher behet berbe berec bereh beret berhe berre berte berth betch betee beter bethe betre bett- bette bheer bhtec brece brech breer breet brere breth brett brrrr btc-e btech btr-t c-tec ccccc ccett cebec ceber cech ceche cecht ceere cerc- cerce cerec cerer ceret cerre certe cette chech cheer cheet chehr chere chert chete cheth chett chher crebe crece creer crete ctree cttee ebber ebbet ebert echte ecthr eeeee eetch ehret erbbe erber erech erect erere erte erter erthe etche etete ether etree etter h-e-b he-he hebbe hebe- heber heche hecht hect- hecte heere heete hehte herce herre herte herth hetch heter hethe hette hheth hhhhh hrere hthrt htree rebbe rebec reber rebet recce recet reche recht rect- recte reece reech reere reerh reeth reher rehet rere- reree reret retch retee reter rethe rette rhett tbtbt teber tebet tecch teche tectb teech teeth tehee terce teret terre tert- tetch teter tethe tetr- tette thebe thec- thect theeb theer ther- there thete theth thre- three thret treer treet trere trete trett ttttt