With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Good Will Hunting is only a book.
text_B: -RSB-. Ethnobiology is the scientific study of the way living things are treated or used by different human cultures .. scientific study. Science. It studies the dynamic relationships between people , biota , and environments , from the distant past to the immediate present .. dynamic relationships. System dynamics. biota. Biota ( ecology ). `` People-biota-environment '' interactions around the world are documented and studied through time , across cultures , and across disciplines in a search for valid , reliable answers to two ` defining ' questions  : `` How and in what ways do human societies use nature , and how and in what ways do human societies view nature ? ''. biota. Biota ( ecology ). disciplines. List of academic disciplines. valid. Validity. reliable. Reliabilism
not_related.