in several recorded instances they have been known to have burnt down large redwood trees to obtain acorns that were buried in the upper parts of the trees by woodpeckers.
(they; have been known; L:in several recorded instances) (acorns; were buried; in the upper parts of the trees; by woodpeckers) (they; to have burnt down; large redwood trees; to obtain acorns) Context(they to have burnt down,List([30, 69))):(they; to have burnt down large redwood trees to obtain; acorns that were buried in the upper parts of the trees by woodpeckers)
they to have burnt down,List([30, 69))
they acorns they they
have been known were buried to have burnt down to have burnt down large redwood trees to obtain
L:in several recorded instances
in the upper parts of the trees by woodpeckers
large redwood trees to obtain acorns
acorns that were buried in the upper parts of the trees by woodpeckers