Mike wrote:
...look at this snippet of XML from
enwiki-latest-pages-articles.xml.bz2
taken from late August. I don't see any namespace in the <title> elements,
...
<title>AaA</title>
...
<title>AlgeriA</title>
Those are main namespace (namespace 0) articles, so they don't
have a prefix. But all the non-main-namespace pages do.
The first is <id>724</id><title>Wikipedia:Adding Wikipedia
articles to Nupedia</title>.)