Whether/how to import references to entities from OBA terms to mapped traits in EFO?

[rays22]

Need to discuss and make a plan.

1. [ ] How to pull the entities referenced by imported composite OBA terms into EFO? Zoe to discuss desirability of this with OTAR.
2. [ ] What relationship type between these imported terms should be uses in EFO?

Example: brain volume trait, brain, volume.

This issue was raised at the EFO-GWAS meeting on 2022-10-26 CC: @dosumis , @matentzn