If I use

http://en.wikipedia.org/w/api.php?action=query&prop=extracts&titles=Lightweight_markup_language&explaintext

or

http://en.wikipedia.org/w/api.php?action=query&prop=extracts&titles=Lightweight_markup_language

it gets a plain text extract of a page's main content nicely - but ignores anything inside tables. Is there a way round that?

Thanks; Andrew