With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Social anxiety disorder is characterized by fear of Justin Timberlake.
text_B: Acacia incanicarpa is a shrub belonging to the genus Acacia and the subgenus Juliflorae .. Acacia. Acacia. It is native to an area on the south coast in the Goldfields-Esperance region of Western Australia .. Goldfields-Esperance. Goldfields-Esperance. Western Australia. Western Australia. The shrub typically grows to a height of 1 to .. It blooms from November to December or January to April producing yellow flowers .
not_related.