002- <?xml version="1.0" standalone="yes"?>
004+ This is a not well-formed<br>
005+ html files with undeclared entities
005- This is a not well-formed<br/>
006- html files with undeclared entities 
009+ <html>
010+ <head><title>Hello world</title></head>
011+ <body>
010- <html><head><title>Hello world</title></head><body>
013- </body></html>
014+ </body>
015+ </html>