Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ruins of León Viejo' has mentioned 'Buffer zone' in the following places:
Occurrence Sentence Text Source
The first area that excavated was near current limits city, and found evidence of a possible smithy, the second excavation made was on an agricultural parcel limited south with Lexc3xb3n Viejo, in what is now part of the buffer zone of the site.
The Nicaraguan Institute of Culture is committed to strengthening the conservation of the Ruins of Lexc3xb3n Viejo in designing and implementing normative instruments specific to the designated area and its buffer zone, and to providing financial support for the proper implementation of the management plan.