Two "part_of" object properties

[wdduncan]

There two object properties with the label part_of:

• http://purl.obolibrary.org/obo/BFO_0000050 which is transitive and reflexive
• http://purl.obolibrary.org/obo/so#part_of which is only transitive

Are both needed? Having both relations may make the ontology more confusing for editors.

cc @yongqunh @linikujp @sivaramarabandi

[linikujp]

It seems that the so#part_of was manually asserted in CIDO. It should be replaced by the BFO_0000050.
Most of the terms are the subclasses of "virus protein".

[Huffmaar]

'part_of' has been deprecated and replaced with the proper BFO term 'part of'