How to search by Relationship Reason?

Does anyone know how to search for a list of Patrons with a relationship type? E.g. Parent-Child ?

Is the “Relationship Reason” seen in the Patron Account Tab searchable by the Mail List Criteria “Patron Relationship” > Relationship Type ?
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If I’m understanding correctly, yes. You can search by Relationship Type via the data file Patron Relationships with Another Patron ALA:

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