Unstranded position

[JervenBolleman]

As FALDO does not describe the concepts of sequences its hard to infer or detect
that a sequence can not be stranded.

We could add a UnstrandedPosition which is disjoint with a StrandedPosition

[KimJBaran]

I think we discussed such an encoding that was in use in BioInterchange. As far as I remember, the consensus was that it would be better to just use a "Position" (i.e., not expressing strandedness at all), because that information could be added later.

If the sequence is inherently unstranded, then I think that "Position" would be sufficient for the encoding too. Otherwise, users might opt to use "UnstrandedPosition" when they do not know the strand, and then later, this would create a contradiction when strand information is added for the position.

[JervenBolleman]

I remember, the discussion came up when talking about restrictions. We have Stranded for UnknownStrandedness
but we don't have a concept of can not be stranded at all. NeverStranded or ImpossibleToBeStranded could be options.