As pointed out by @chrzyki in PR #1475, we seem to have been somewhat inconsistent in our use of source and target concepts in conceptrelations.tsv.
"[...] particularly for those relations that require an order (e.g. instanceof, resultsin, producedby, etc.)?
| SOURCE_GLOSS |
RELATION |
TARGET_GLOSS |
| BREAST |
producedby |
MILK |
| vs |
|
|
| MELODY |
producedby |
LUTE |
Likewise for many other cases of narrower, partof, requires, etc."
We should probably discuss these concept relations and fix a directionality in cases where we haven't already?