Methods, storage media, and apparatuses associated with evaluating a content item are disclosed herein. In various embodiments, a computer-implemented method may include receiving, by a search expression generator operated by a computer, the content item. Additionally, the method may include generating a search expression, by the search expression generator, based on the content item, to facilitate evaluating the content item based at least in part on searching other content items using the search expression. The search expression may indicate nested juxtapositions of sub-expressions of the search expression. In other embodiments, at least one storage medium may include instructions implementing a search engine that applies the search expression to a collection of other content items. In still other embodiments, an apparatus may include a configurator adapted to organize the collection of other content items. Other embodiments may also be disclosed and claimed.