With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 2003, Justin Trudeau quit a program.
text_B: Isla Roca Lobos , is an island in the Gulf of California east of the Baja California Peninsula .. Gulf of California. Gulf of California. Baja California. Baja California. island. island. Baja California Peninsula. Baja California Peninsula. The island is uninhabited and is part of the Mexicali Municipality .. island. island. Mexicali Municipality. Mexicali Municipality, Baja California
not_related.