ECHOGRAPH

ae ag ah ar eh er go ha he ho oe oh op or pa pe re

ace age ago ape apo arc are cap car cep cog cop cor ear ego era erg gae gap gar goa gor hae hag hah hao hap heh hep her hoe hog hop oar oca ope ora orc ore pac pah par pea pec peg peh per poh pro rag rah rap rec reg rep rho roc roe

ache acre aero ager aper arch arco cage cape caph capo care carp cero chao chap char chop cope core crag crap crop each echo epha ergo gape gear goer gore gorp hare harp heap hear hero hoar hoer hope hora ogre opah orca pace page pare peag pear pech pore prao proa prog race rage rape reap repo rhea rope