is_sourced_from
Use it like this:
- [ #is/_sourced_from :: BrainStructure ] or
- [ is_sourced_from :: BrainStructure ]
The neurological pathway that originates the neurons.
Relation describes that: [ #has_/domain :: Nerve ] ( #has_/name :: is_sourced_from ) ( #has_/range :: BrainStructure )