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https://ddintsis.com/2020/08/05/%d0%b3%d1%80%d0%b0%d1%84%d1%8b-%d0%b4%d0%bb%d1%8f-%d0%b0%d0%bd%d0%b0%d0%bb%d0%b8%d0%b7%d0%b0-customer-journey/
Графы для анализа Customer Journey