(Q1) In the second chapter of the document named "zoo.xml", find the figure(s) with caption "Tree Frogs".

document("zoo.xml")/chapter[2]//figure[caption = "Tree Frogs"]
  • uses the "abbreviated syntax of XPath"
  • borrows the document() function from XSLT
  • introduces the dereference operator and the range predicate
  • result of a path expression is a deep copy of selected nodes
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