Complex sentence: To the east of Aruba are Bonaire and Curaçao, two island territories which once formed the southwest part of the Netherlands Antilles; this group of islands is sometimes called the ABC islands.
Split into simpler sentences: To the east of Aruba are Bonaire and Curaçao, two island territories which once formed the southwest part of the Netherlands Antilles. This group of islands is sometimes called the ABC islands.