TETRAEDRUM

ad ae am ar at de ed em er et ma me mu re ta um ut

amu are arm art ate att dam dee due ear eat eau eme emu era ere err eta mad mae mar mat med met mud mut rad ram rat red ree rem ret rue rum rut tad tae tam tar tat tau tea ted tee tet tut urd uta ute

arum dame dare dart date daut dear deem deer deet deme dere derm dram drat dree drum duet duma dura dure durr emeu made mare mart mate matt maud maut mead meat meed meet mere meta mete mura mure murr mute mutt rare rate read ream rear rede reed rete rude rued ruer tame tare tart tate taut team tear teat teed teem term trad tram tree tret true turd urea