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chromium/content/test/data/accessibility/language-detection/lang-attribute-nested-expected-mac.txt 

AXWebArea AXLanguage='en'
++AXGroup AXLanguage='en'
++++AXStaticText AXLanguage='en' AXValue='This document is excellent.'
++AXStaticText AXLanguage='es-ES' AXValue='Este documento es excelente.'
++AXGroup AXLanguage='fr'
++++AXStaticText AXLanguage='fr' AXValue='Ce document est excellent.'
++AXStaticText AXLanguage='en' AXValue='This document is excellent.'