With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: British Columbia engages in the tourist trade.
text_B: Kilbirnie Loch -LRB- NS 330 543 -RRB- , is a freshwater Loch situated in the floodplain between Kilbirnie , Glengarnock and Beith , North Ayrshire , Scotland .. North Ayrshire. North Ayrshire. Kilbirnie. Kilbirnie. Beith. Beith. Glengarnock. Glengarnock. Loch. Loch. It runs south-west to north-east for almost 2 km , is about 0.5 km wide for the most part and has an area of roughly 3 km2 -LRB- 761 acres -RRB- .. It has a general depth of around 5.2 metres -LRB- 17 feet -RRB- to a maximum of around 11 metres -LRB- 36 feet -RRB- .. The loch is fed mainly by the Maich Water , which rises in the Kilbirnie Hills near Misty Law -LRB- 507m or 1663 feet -RRB- , and is drained by the Dibbs Water that runs into Castle Semple Loch , followed by the Black Cart , the White Cart at Renfrew and finally the River Clyde .. loch. loch. Kilbirnie. Kilbirnie. Loch. Loch. Castle Semple Loch. Castle Semple Loch. Black Cart. Black Cart. Renfrew. Renfrew. River Clyde. River Clyde. The boundary between East Renfrewshire and North Ayrshire , in the vicinity of the loch , runs down the course of the Maich Water along the northern loch shore to then run up beside the Dubbs Water .. loch. loch. North Ayrshire. North Ayrshire. East Renfrewshire. East Renfrewshire
not_related.