With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Poland is a place.
text_B: The South Korean White Revolution is a term used to refer to the extensive use of plastic films -LRB- specifically , polyethylene film -RRB- for greenhouses , mulching and Polytunnels .. polyethylene. polyethylene. This practice turned the color of the landscape from green to white , due to the large area of agricultural land under protected cultivation .
not_related.