Bill Duncan

Thanks @matentzn I didn't see what part might be of use. I the turtle statement: ``` fhir:ConceptMap.group.element.target.code [ fhir:value "BAD" ]; ``` Isn't `fhir:ConceptMap.group.element.target.code` a predicate? If so, I suppose...

I like the idea of `NoMapping`, or perhaps `ssssom:NoMapping`.

> We could also use sssom:Nothing instead of noMappig to retain a bit the "object-ness" This makes sense to me! Also, you could include a column that for whether a...

Do we want a special predicate for such cases? E.g.: `sssom:noMatch`

I think this is fine. I took a similar approach in the [GOLD SSSOM file](https://github.com/microbiomedata/nmdc-schema/blob/main/sssom/gold-to-mixs.sssom.tsv). Although, it seems I goofed on the number quotation marks around the full uri :(

I understand that scope creep is difficult to manage. Yes, the collection date example I gave is an actual use case for my data.

I am not sure I am understanding what you mean by (A -> "som val"). I'm not talking about literals. These are the actual column names (which I will simply...

I've added this to the [meeting agenda](https://docs.google.com/document/d/19dhzj5QoliQZQgDJRczI878rLtexzMDo1g0K9_LRUWk/edit#). Not sure if we get time to discuss it, though. Do others consider this to be addressed by https://github.com/OBOFoundry/OBOFoundry.github.io/issues/846? If so, we should...

Another suggestion may be for RO to use the ECTO class [exposure event](http://purl.obolibrary.org/obo/ExO_0000002) for the domain constraint. However, that may break existing usages.

COB has added an [exposure of organism](https://github.com/OBOFoundry/COB/issues/192) class. Waiting on [new release of COB](https://github.com/OBOFoundry/COB/issues/210) before using this class.