Fill Select field with content from a single post

Hi all

i’ve a post that contains a list o strings (one string for row), like this:
bla bla bla
ble ble ble
blu blu blu

then i’m trying to populate a Select field retriving those strings
so the user can choose a string for single row
but the output in the Select i get 1 row with all the string in it

[select* show include_blank ""]

[cf7-recordset id="posta-data" type="post" attributes="post_title,post_content,guid" condition="post_status="publish" AND post_type="page" AND ID='4655'"]

[cf7-link-field recordset="posta-data" field="show" value="{template.post-content-summary}" keep-options]

<template id="post-content-summary">
<h2><a href="https://projectdmc.org/support/topic/fill-select-field-with-content-from-a-single-post/{attribute.guid}">{attribute.post_title}</a></h2>
<p>{attribute.post_content}</p>
</template>

also, i do’t need the page title but if i don’t use it, i got nothing in the Select field

there’s a way to reach teat goal?

thanks in advance!