DELTAHEDRA

aa ad ae ah al ar at de ed eh el er et ha he la re ta

aah aal add aha ala ale alt are art ate dad dah dal dee del ear eat edh eel eld era ere eta eth had hae hat her het lad lar lat lea led lee let rad rah rat red ree ret tad tae tar tea ted tee tel the

ahed alae alar alee area dada dahl dale dare dart data date dead deal dear deed deer deet dele delt dere dhal drat dree earl eath haar hade haed haet hale halt hard hare harl hart hate head heal hear heat heed heel held herd here herl lade lard late lath lead lear leer leet lehr rale rate rath read real redd rede reed reel rete rhea tael tahr tala tale tare teal tear teed teel tela tele thae thee trad tree