1 ROLE_SYSTEM_DOCUMENT READONLY FOCUSABLE
3 ++++ROLE_SYSTEM_EQUATION
4 ++++++ROLE_SYSTEM_STATICTEXT name='a'
5 ++++++ROLE_SYSTEM_STATICTEXT name='2'
6 ++++++ROLE_SYSTEM_STATICTEXT name='+'
7 ++++++ROLE_SYSTEM_STATICTEXT name='b'
8 ++++++ROLE_SYSTEM_STATICTEXT name='2'