In an effort to figure out how templates work on mediawiki, I copied the source from Wikipedia's "Sacramento, California" page, and then installed the "Infobox_City" template on my Wiki. I installed ParserFunctions.php. When I look at my "Sacramento, California" page in edit mode, under the "Templates used on this page" section, here is the first template listed: Template:! I trace this back to the template "Infobox_City", where there are lots of operators like this: {{!}} ... which, I am guessing, are being interpreted as template declarations. Can someone set me on the right track on how to get my wiki to parse these {{!}} operators properly? Thanks, Charlie