XPath Issues in XQuery

[David Carlisle]

> Hope this would help with the debugging.

not much.

just how difficult can it be to post a complete (small) file on which
you (and others) could run the query?

You are iterating through unique head elements that contain the word
muscle, and for each found head, you want to extract some volume
information. presumably the source file somehow indicates the
relationship between these head elements and the elements with volume
information, but without knowing what that relationship is, how can I
help?

David

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