Sentence:  There may be one or a dozen or perhaps a hundred or so of supers with partly filled sections, and these are all designated as "<WSD>gobacks</WSD>". They are either placed on top of other supers that are being built out from foundation, or upon colonies that seem to show a special aptitude for finishing up <WSD>gobacks</WSD>. 
Meaning of the word marked with <WSD> tags:  A section of honeycomb that is unfinished and returned to the hive.