Can we write Legend tag twice inside a fieldset tag?

Can we write the <legend> tag twice in a <fieldset>?
And can we include the <p> tag inside the <fieldset>?

<fieldset>
    <legend>Feedback</legend>
    <p>Did you like it?</p>
    <input type="checkbox" name="level" value="low" />
    <label for="level">I didn't Like it.</label>
    <input type="checkbox" name="level" value="high" />
    <label for="level">Heck, Yes.</label>
    <legend>Subscribe for newsletter:</legend>        
    <input type="radio" name="newsletter" value="yes">
    <label for="newsletter">Yes</label>
    <input type="radio" name="newsletter" value="no">
    <label for="newsletter">No</label>
</fieldset>