Assertion: alkaloid's use | /r/HasProperty | a north tungusic culture trait
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Source sentences:
text: If this is indeed the case, then it may have been the Oroqen who were preparing a narcotic drink from roasted Physochlaina seed, assuming that Physochlaina use was a peculiarly North Tungusic culture trait - as manifested also in the brewing of Physochlaina beer by the Evenki of the Yenisei.