-tree d-mer ddddd ddrmm dedde dedee deder deede deeme deere demer demet demme demre derde dered derm- derme derre deter detre dette drdre dredd drede dreed drere dxdxd e-dee e-med edder eddre edere edmed edred eeeee eerde emdex emede emeer emere emert emmer emmet emtee erdem erdre erede erem- erere erred erte erter etete etext etree etter exede exeem exeme exert exmet exred exter extre med-x medee medem meder meede meere meete memer memex merde mered merer meret merre merte meted meter metr- metre metrx mette mexer mmdxx mmmmm mrmet mrred mt-td mt-te mt-tm mt-tr mt-tt mtree redde redem reder redex reede reeme reere remed remee remer remet remex rerde rere- reree reret reted retee retem reter retex rette rexer rtext t-rex teder teeme teerd temed terem teret terex terme terre tert- teter tetex tetr- tette texed texrd texte treed treer treet treme trere trete trett ttttt xedre xerem xerte xetex xexex xmmer xterm xtext xtree