Systems and methods identify recent or ephemeral events involving entities that can be used to update a data graph or provide enhanced search results. For example, a computer-implemented method includes determining at least one search term for an entity in a data graph and determining a time period having an increase in queries for the at least one search term, the increase meeting a threshold. The method may include determining documents having dates associated with the time period, the documents being responsive to the at least one search term, and analyzing the documents to determine a subject, verb, object triple, where the search term corresponds to the subject or the object of the triple. The method may also include providing an update for the data graph based on the triple. The method may also include generating text describing the triple for inclusion in a search result for the search query.