Smart Playlist with mixed AND/OR condition filters

I’m trying to create a Smart Playlist for cross over events such as Arrowverse (consisting of multiple TV Shows) and also want to hide the already Watched episodes.

So far I’m able to create the Smart List but the list currently shows ALL items from the three shows: Arrow, The Flash and Supergirl.

Code:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<smartplaylist type="episodes">
    <name>Arrowverse</name>
    <match>one</match>
    <rule field="tvshow" operator="is">
        <value>Arrow</value>
    </rule>
    <rule field="tvshow" operator="is">
        <value>The Flash (2014)</value>
    </rule>
    <rule field="tvshow" operator="is">
        <value>Supergirl</value>
    </rule>
    <order direction="ascending">year</order>
</smartplaylist>

The Rule Match is set to Filter by TV Show Name with any one name i.e. OR condition but I want this OR to go with UNWATCH (or Playcount = 0) i.e. AND. Is it possible to do so?