But for all the tribes it is the erosion and destruction of the whole Grand Canyon, which they believe is the center of the Universe, which most threatens their cultural identities.
(it; is; the erosion and destruction of the whole Grand Canyon) (the center of the Universe; most threatens; their cultural identities) (they; believe; is the center of the Universe)
it the center of the Universe they
is most threatens believe
the erosion and destruction of the whole Grand Canyon
their cultural identities
is the center of the Universe