Different case IMO. There you know both the object and the location to some margin of error. If there was a strange noise in the room, you might know the locati

Different case IMO. There you know both the object and the location to some margin of error. If there was a strange noise in the room, you might know the location to the same degree of precision (i.e. it's somewhere in the room), but until you determine the object making it, the source of the noise is still unknown.