-tree bbbee be-er beber beebe beete beeth behem beher behet bembe bemer bemet berbe bereh beret berhe berme berre berte berth betee beter bethe betre bett- bette bheer breem breer breet brehm breme bremm brere breth brett brmmm brrrr btr-t e-hrm ebber ebbet ebert eeeee ehret embee ember emeer emere emert emeth emmer emmet emtee erbbe erber erem- erere ermth erte erter erthe etete ethem ether etree etter h-e-b he-he hebbe hebe- heber heeme heere heete hehte hemer hemet hemme herem herre herte herth heter hethe hette hheth hhhhh hmere hmmer hrere hthrt htree mbebe mbere mbret mebbe meere meete meeth meher mehte membe memer merer meret merre merte merth meter meth- methe metr- metre mette mheer mhere mmhmm mmmmm mrmet mt-te mt-th mt-tm mt-tr mt-tt mtree rebbe reber rebet reeme reere reerh reeth rehem reher rehet remee remer remet rere- reree reret retee retem reter rethe rette rheem rheme rhett tbtbt teber tebet teeme teeth tehee tembe terem teret terme terre tert- teter tethe tetr- tette thebe theeb theer theme ther- there therm thete theth thre- three thret treer treet treme trere trete trett ttttt