SYPHILOID

do hi ho id is li lo od oh oi op os oy pi sh si so yo

dip dis dol dos hid hip his hod hop hos hoy hyp ids lid lip lis lop ods ohs oil old ops phi pis ply pod poh poi pol psi shy sip sly sod sol sop soy spy yid yip yod

diol dips dish dols dopy hili hips hods hold holp hols holy hops hoys hypo hyps idly idol idyl lido lids lips lisp loid lops odyl oils oily olds oldy phis pili pily pish piso plod ploy pods pois pols poly posh posy ship shod shop sidh sild silo slid slip slop soil sold soli soph syli syph yids yips yodh yods