Complex sentence: The island has no indigenous population, but is assigned the ISO 3166-1 alpha-2 country code SJ (together with Svalbard), the Internet country code top-level domain (ccTLD).
Split into simpler sentences: The island has no indigenous population, but is assigned the ISO 3166-1 alpha-2 country code SJ (together with Svalbard). It uses the Internet country code top-level domain (ccTLD).