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added by lilyZ
This National Geographic achtergrond contains sitka sparren, sitkaspar, picea sitchensis, spoortunnel, and spoorweg tunnel. There might also be beuken, beuken boom, beuk, amerikaanse witte berk, papier berken, paperbark berk, kano berk, betula cordifolia, papierberk, paper birch, kano birch, betula papyrifera, douglas spar, and douglas fir.
