Ah - I see. No expert in poetry, but if it is read to some kind of time related feature - like a click, then you could treat it like music phrases, but you would need to create a tempo map to reflect the pace/meter. Then each phrase could be quantised to align, but I've never heard of anyone doing such a thing - and manually what a pain! I'm not sure musical applications would understand poetry - especially when it's common for some phrases to be elongated to match the syllables.