cpython/Modules/_xxtestfuzz/fuzz_elementtree_parsewhole_corpus/inNsPushdown.xml

<a:foo xmlns:a="http://a" xmlns:b="http://b" xmlns:c="http://c">
 <b:bar/>
 <b:bar/>
 <b:bar/>
 <a:bar b:att1="val"/>
</a:foo>