<system-data-structure>
	<asset type="page" identifier="parent" label="Parent Post" multiple="false" required="true" />
	<text identifier="username" label="Username" multiple="false" required="true" />
	<text identifier="subject" label="Subject" multiple="false" required="true" />
	<text identifier="body" label="Body" multi-line="true" multiple="false" required="false" />
</system-data-structure>