ssn: Sensor dc:source annotation

I recall Simon posted a an objection  to the  dc:source annotation for ssn:Sensor. I apologise for not referencing it here - I cannot find it again.
The object was related to the  annotation on ssn:sensor that said  "which is thus wider than the O&M concept"

However, looking at it now, I am disinclined to change it  from the original which says

"....O&M allows sensors, methods, instruments, systems, algorithms and process chains as the processUsed of an observation; this ontology allows a similar range of things (any thing that can do sensing), just they are all grouped under the term sensor (which is thus wider than the O&M concept)."" ;

Here it is saying that ssn:Sensor is wider than the O&M concept of a sensor which can  be a processUsed (along with other things like instruments and algorithms).

The ssn:Sensor  rdfs:Comment says "... Sensors may be physical devices, computational methods, a laboratory setup with a person following a method, or any other thing that can follow a Sensing Method to observe a Property."

Therefore, I conclude that ssn:Sensor is indeed "wider than the O&M concept"  and propose to leave it in the original form - ie the same dc:source annotation as it always had. Please  raise an issue  (linked to this) if that seems wrong to you.

--Kerry