OPISTHOTONOID

do hi ho id in is it no od oh oi on op os pi sh si so ti to

din dip dis dit don dos dot hid hin hip his hit hod hon hop hos hot ids ins ion its nip nit nod noh noo nos not nth ods oho ohs ono ons ooh oot ops opt phi pht pin pis pit pod poh poi poo pot psi pst sin sip sit sod son sop sot tho tin tip tis tit tod ton too top tot

dino dins dint dips dipt dish dits doit dons dost doth dots hind hins hint hips hisn hist hits hods hons hood hoop hoot hops host hots inti into ions nidi nips nisi nits nodi nods nosh onos onto oohs oops oots opts otto phis phon phot pins pint pion pish piso pith pits pods pois pond pons pood pooh poon poos posh post pots shin ship shit shod shoo shop shot sidh sinh sith snip snit snot soon soot soph soth spin spit spot stop stot thin thio this tins tint tipi tips titi tits tods toit tons toon toot toph topi topo tops tosh tost tots