With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Patriot Act prohibits FBI to search telephone records without court order.
text_B: Mermaids Cave is an undercut sandstone cave located in the Blue Mountains of New South Wales , Australia .. Blue Mountains. Blue Mountains ( Australia ). New South Wales. New South Wales. Australia. Australia. It was named in 1882 and was also known as Mermaid 's Glen .. It is accessible by a short walking trail from the Megalong Valley road .. Megalong Valley. Megalong Valley. A scene from Mad Max Beyond Thunderdome was filmed there .. Mad Max Beyond Thunderdome. Mad Max Beyond Thunderdome
not_related.