DIPLOHEDRON

de do ed eh el en er he hi ho id in li lo ne no od oe oh oi on op or pe pi re

del den did die din dip doe dol don dor edh eld end eon ern hen hep her hid hie hin hip hod hoe hon hop ion ire led lei lid lie lin lip loo lop nil nip nod noh noo nor odd ode oho oil old ole one ono ooh ope ore ped peh pen per phi pie pin pod poh poi pol poo pro red rei rep rho rid rin rip rod roe

deil deli deni dido died diel dine dino diol dire dirl dodo doer dole done door dope dore dorp drip drop eddo elhi enol heil heir held helo help herd herl hern hero hide hied hind hire hoed hoer hold hole holp hone hood hoop hope horn idle idol inro ired iron lehr lend leno lido lied lien lier line lino lion lipe lire lode loid loin lone loon loop lope lord lore lorn nerd nide node nodi noel noil noir nolo nope nori odor ohed oleo olio oped open ordo orle pein pend peon peri phon pied pier pile pine pion pirn pled plie plod pole polo pond pone pood pooh pool poon poor pore porn prod redd redo rein rend repo ride riel rile rind ripe rode roil role rood rope