| colspan="3" align="center" | ''only at the beginning of the line''
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different levels <ref>Use of a heading created by single equal signs is discouraged as it appears with the same formatting and size as the page title, which can be confusing.</ref><ref>An article with four or more headings will automatically create a [http://en.wikipedia.org/wiki/Wikipedia:Section#Table_of_contents_.28TOC.29 table of contents].</ref>