RO:0002380

x is a branching part of y if and only if x is part of y and x is connected directly or indirectly to the main stem of y

we need to check if FMA branch_of implies part_of. the relation we intend to use here should - for example, see vestibulocochlear nerve

In the tree T depicted in https://oborel.github.io/obo-relations/branching_part_of.png, B1 is a (direct) branching part of T. B1-1, B1-2, and B1-3 are also branching parts of T, but these are considered indirect branching parts as they do not directly connect to the main stem S

uberon

branching_part_of

http://purl.obolibrary.org/obo/cl.owl

https://github.com/obophenotype/uberon/issues/2212,FMA:85994,http://purl.obolibrary.org/obo/FMA_85994

branching_part_of

Chris Mungall