Complex sentence: Adamasta Rock (北長洲石), one of the 235 islands of Hong Kong, under the administration of Islands District, is located in the Adamasta Channel (北長洲海峽).
Split into simpler sentences: Adamasta Rock (北長洲石) is one of the 235 islands of Hong Kong, under the administration of Islands District. It is located in the Adamasta Channel (北長洲海峽).