With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Maria I of Portugal was barely Queen of a place derived from the words Gharb al-Andalus.
text_B: Ouratea tumacoensis is a species of plant in the Ochnaceae family .. Ochnaceae. Ochnaceae. Ouratea. Ouratea. plant. plant. It is endemic to Colombia .. endemic. Endemism. Colombia. Colombia
not_related.