Restricting "Similar" Results by Node

[dingman]

I looked and couldn't find a way, is it possible to restrict results when using the Similarity function, to restrict by parent Node?

For example, I have product ABC, I want to query Amazon for all products that have a Parent Node of 123456. My goal is around electronics. I don't want "shirts" or "pants" or "rubber bands" ending up in my returned results.

TIA!