<tt>!</tt> mark in contradiction used for amboxes
<a href="//commons.wikimedia.org/wiki/User:Penubag" title="User:Penubag">penubag</a>, <a href="//commons.wikimedia.org/wiki/User:Rugby471" title="User:Rugby471">Rugby471</a>
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Emblem-contradict.svg" title="File:Emblem-contradict.svg">Emblem-contradict.svg</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:Rugby471" title="User:Rugby471">Rugby471</a>