With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mark Zuckerberg is the founder of Facebook.
text_B: Pia Wadjari is a medium-sized Aboriginal community , located of in the Mid-West Region of Western Australia , within the Shire of Murchison .. Shire of Murchison. Shire of Murchison. Mid-West Region. Mid West ( Western Australia ). Western Australia. Western Australia
not_related.