1. A computer implemented method comprising: identifying an entity reference in a knowledge graph, wherein the entity reference corresponds to an entity type; identifying a missing data element, wherein the data element is associated with the entity reference; generating a query based at least in part on the missing data element and the entity type; providing the query to a query processing engine; receiving information from the query processing engine in response to the query; and updating the knowledge graph based at least in part on the received information.