First one or more values are extracted from a plurality of events using a first extraction rule. The extracted first one or more values are assigned to a first field of the plurality of events as a first set of field-data item pairs. Second one or more values are extracted from the plurality of the events using a second extraction rule. The second extraction rule identifies the second one or more values and a field label corresponding to the second one or more values in the extracted first one or more values of the first set of field-data item pairs. The extracted second one or more values are assigned to a second field of the plurality of events as a second set of field-data item pairs. The field label extracted using the second extraction rule or a modified version thereof may be assigned to the second field.