HIPPOTOMY

hi hm ho it mi mo my oh oi om op oy pi ti to yo

him hip hit hop hot hoy hyp imp mho moo mop mot ohm oho ooh oot opt phi pht pip pit poh poi pom poo pop pot tho thy tip tom too top toy yip yom

homo homy hoop hoot hypo mity moot mopy moth myth omit phot pimp pipy pith pity pomo pomp pooh poop thio toom toph topi topo toyo typo typp