Complex sentence: The Golden White-eye was once considered to be a honeyeater in the family Meliphagidae and although it is now known to be a white-eye, its position within that family is still uncertain.
Split into simpler sentences: The Golden White-eye was once considered to be a honeyeater in the family Meliphagidae. Although it is now known to be a white-eye, its position within that family is still uncertain.