Назовите основания и порядок признания лиц

What are the grounds and procedure for recognizing individuals as interdependent and decide the following situation: the share of organization A in organization E is 10%, in organization C - 30% and 50% in organization B. In turn, organizations C and B participate in organization E as 50% and 40%.
Determine the share of participation of organization A. in other organizations in accordance with tax legislation.

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