Tags placed into the content-summary category were those that described and/or summarized what was going on in the photograph or document. These tags comprised 16.32% of all tags, 16.35% of photograph tags, and 8.53% of document tags. Similar to the subject tags, the nature of the formats revealed the format disparity. Since the photographs required more interpretation, they produced a higher percentage of the content-summary tags (1,051 out of 1,514 tags or 69.4%). The photograph content-summary tags often incorporated the entire idea of an image, whereas the document content summaries sometimes focused on one paragraph rather than the entire document.