rootWebArea
++genericContainer ignored
++++genericContainer
++++++mathMLMath
++++++++mathMLRow
++++++++++mathMLIdentifier
++++++++++++staticText name='%F0%9D%91%A5'
++++++++++++++inlineTextBox name='%F0%9D%91%A5'
++++++++++mathMLNumber
++++++++++++staticText name='2'
++++++++++++++inlineTextBox name='2'