Complex sentence: The taxonomic relationship of this species has been subject to debate, and it has been connected to the Psittaculini parrots based on anatomical grounds, but to the vasa parrots based on genetic grounds.
Split into simpler sentences: The taxonomic relationship of this species has been subject to debate. It has been connected to the Psittaculini parrots based on anatomical grounds, but to the vasa parrots based on genetic grounds.