Ingestion/cross referencing of other relation ontologies

[ael33]

I am wondering if the PSI:MI-tab for interactions can be
ingested into the RO since it describes relationships between
two molecular entities. If not, are there similar/equivalent terms.

Similarly for drug-drug or protein-chemical interactions which are described in chembl or
bioassay ontologies.

Apologies is this is out of scope of the intended purpose of the RO