chromium/content/test/data/accessibility/html/bdo-expected-mac.txt

AXWebArea
++AXGroup
++++AXStaticText AXValue='Some LTR text'
++++AXStaticText AXValue=' '
++++AXStaticText AXValue='Some RTL text '
++++AXStaticText AXValue='with some LTR text embedded'