With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Miley Cyrus was killed in 1992.
text_B: Microeurydemus flavescens is a species of leaf beetle of Saudi Arabia and Oman .. Microeurydemus. Microeurydemus. leaf beetle. leaf beetle. Saudi Arabia. Saudi Arabia. Oman. Oman
not_related.