-tree bbbee be-er beber beebe beete beeth beher behet berbe bereh beret berhe berre berte berth betee beter bethe betre bett- bette bheer breer breet brere breth brett brrrr btr-t ebber ebbet ebert eeeee ehret erbbe erber erere erte erter erthe etete ether etree etter h-e-b he-he hebbe hebe- heber heere heete hehte herre herte herth heter hethe hette hheth hhhhh hrere hthrt htree rebbe reber rebet reere reerh reeth reher rehet rere- reree reret retee reter rethe rette rhett tbtbt teber tebet teeth tehee teret terre tert- teter tethe tetr- tette thebe theeb theer ther- there thete theth thre- three thret treer treet trere trete trett ttttt