Hi and thank you very much for this wonderful module, looks very interesting and promising.
We're currently implementing a "Pedigree" (family tree for horses) and therefor have "Father" and "Mother" fields.
Reading through the explanation on the module page, I'm not totally sure if the module fits that case and would be helpful or if it's for the other case: Listing children (where you wouldn't naturally know if father or mother the other way around).
Would be great to clarify if this is for upwards or downwards references in a tree and maybe add a family tree as further example how to use this module?
Thank you! :)
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