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