Complex sentence: The ARRL represents amateur radio operators in Hawaii, American Samoa, Guam, and other dependent territories in the Pacific Ocean, and the RSGB represents amateur radio operators in the British Indian Ocean Territory.
Split into simpler sentences: The ARRL represents amateur radio operators in the U.S. state of Hawaii and in American Samoa, Guam, and other dependent territories in the Pacific Ocean. The RSGB represents amateur radio operators in the British Indian Ocean Territory.