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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def execute(self, query):
 """ Execute arbitrary queries on the db. .. seealso:: :class:`FeatureDB.schema` may be helpful when writing your own queries. Parameters query : str Query to execute -- trailing ";" optional. Returns ------- A sqlite3.Cursor object that can be iterated over. """

        c = self.conn.cursor()
        return c.execute(query)