At times, internet filtering software can be either over or under aggressive in blocking specific types of content. For example, information about the human body, which may include reproductive organ descriptions, could be blocked when a student is doing a science report for an anatomy class. That would be an example of overblocking. An example of underblocking is when a website for a video game is mainly graphical and changes often, thus not providing enough current information in a textual format that is easy for the software to interpret and execute a blocking routine on.