UNKNOWN focusable has_input_focus
++UNKNOWN hidden
++++UNKNOWN hidden
++++++TABLE number_of_rows=2 number_of_columns=2
++++++++ROW_GROUP hidden
++++++++++TABLE_ROW
++++++++++++COLUMN_HEADER label='Browser' cell_row_span=1 cell_column_span=1
++++++++++++++STATIC_TEXT label='Browser'
++++++++++++++++UNKNOWN label='Browser'
++++++++++++COLUMN_HEADER label='Rendering Engine' cell_column_index=1 cell_row_span=1 cell_column_span=1
++++++++++++++STATIC_TEXT label='Rendering Engine'
++++++++++++++++UNKNOWN label='Rendering Engine'
++++++++++TABLE_ROW row_index=1
++++++++++++CELL label='Chrome' cell_row_index=1 cell_row_span=1 cell_column_span=1
++++++++++++++STATIC_TEXT label='Chrome'
++++++++++++++++UNKNOWN label='Chrome'
++++++++++++CELL label='Blink' cell_row_index=1 cell_column_index=1 cell_row_span=1 cell_column_span=1
++++++++++++++STATIC_TEXT label='Blink'
++++++++++++++++UNKNOWN label='Blink'