This method takes a JSON-encoded dictionary called queries where the individual queries use the exact same syntax as a query made with fql.query. However, this method allows for more complex queries to be made. You can fetch data from one query and use it in another query within the same call. The WHERE clause is optional in the latter query, since it references data that’s already been fetched. To reference the results of one query in another query within the same call, specify its name in the FROM clause, preceded by #.