1. A computer-implemented method for analyzing a collection of content for sentiment data, comprising: executing a relationship query against the content in the collection to determine a set of relationships exhibiting positive sentiment for a source of sentiment towards a subject of the sentiment; executing a relationship query against the content in the collection to determine a set of relationships exhibiting negative sentiment for a source of sentiment towards a subject; determining a percentage of the determined relationships exhibiting positive sentiment to a total of determined relationships exhibiting either positive or negative sentiment; determining a percentage of the determined relationships exhibiting negative sentiment to a total of determined relationships exhibiting either positive or negative sentiment; and presenting on a display device, a user interface that indicates the percentage of the determined relationships exhibiting positive sentiment and the relationships exhibiting negative sentiment for the source of sentiment towards the subject of the sentiment.