With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ecological Sustainability is included in International Relations.
text_B: Cavendish Beach is a Canadian beach in the community of Cavendish , Prince Edward Island .. Canadian. Canada. Cavendish. Cavendish, Prince Edward Island. Prince Edward Island. Prince Edward Island. Fronting the Gulf of St. Lawrence , this broad natural sand beach stretches for 8 kilometres from the entrance to New London Bay in the west , to the red sandstone cliffs at Cavendish East in the east .. Cavendish. Cavendish, Prince Edward Island. Gulf of St. Lawrence. Gulf of St. Lawrence. The entire beach is located in the Prince Edward Island National Park .. Prince Edward Island. Prince Edward Island. Prince Edward Island National Park. Prince Edward Island National Park. The beach is typically divided into the following sections  :. Cavendish Spit , a barrier beach protecting the entrance to New London Bay .. Cavendish. Cavendish, Prince Edward Island. Cavendish Campground Beach , the section of Cavendish Beach near the national park campground , immediately east of the spit .. Cavendish. Cavendish, Prince Edward Island. Cavendish Main Beach , the most publicly accessible area of beach at the end of Graham 's Lane .. Cavendish. Cavendish, Prince Edward Island. It has extensive parking facilities , as well as a complex featuring changing rooms , washrooms and a canteen .. A boardwalk carries beach goers over the fragile sand dunes fringing the edge of the beach and separating it from MacNeill 's Pond in the southeast and Clark 's Pond in the southwest .
not_related.