With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Wild Thornberrys aired only on Disney.
text_B: Pale sedge is a common name for several plants and may refer to  :. Carex livida. Carex livida. Carex livida. Carex pallescens. Carex pallescens. Carex pallescens
not_related.