Question: Ritsuko Okazaki, was a Japanese singer-songwriter born on Hashima Island, commonly called Gunkanjima, an abandoned island lying about how manykilometers from the city of Nagasaki, in southern Japan?
Sentence (from "Hashima Island"): The island's most notable features are its abandoned concrete buildings, undisturbed except by nature, and the surrounding sea wall.
Relevant evidence: No