Complex sentence: For a system where the orbits of Planet Nine and the objects are inclined, however, the added variety of possible orientations of the orbits makes the boundaries of the resonances fuzzy, replacing the well defined boundaries with chaotic bands.
Split into simpler sentences: For a system where the orbits of Planet Nine and the objects are inclined the resonant dynamics is more complex. The variety of possible orientations of the orbits makes the boundaries of the resonances fuzzy, replacing the well defined boundaries with chaotic bands.