Placeholder ticket: re-examine relations used to define terms that refer to anatomical entities

[vanaukenk]

Background:
There's been lengthy, ongoing discussion wrt GO-CAM models, AEs, and the ontology about use of relations that are used to capture anatomical entities, e.g. 'results in development of'.
There are ~20 of these relations that are used with specific GO terms.

The idea here is to devise a single relation that could appropriately be used in place of these more specific relations to still accurately capture the biologically relevant entities, but simplify the overall use of relations in GO.