Find out product relationship

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Duplicate:

use KNIME to find out relationship

I want to use KNIME to find out relation between products. For example, product 1 is produced by plant A, and procut 9 &procut 2 is also produced by plant A, which means procut 9 is a sub-product of product 1 .So product 5 is sub-product of product 9. plant Product code A 1 B 5 B 9 A 9 A 2 Finally, i want to get a report like below: P Sub-P 1 9 1 5 1 2