UNKNOWN focusable has_input_focus label='done'
++UNKNOWN hidden
++++UNKNOWN hidden
++++++TABLE number_of_rows=2 number_of_columns=1
++++++++ROW_GROUP hidden
++++++++++TABLE_ROW
++++++++++++CELL hidden cell_row_span=1 cell_column_span=1
++++++++++++CELL label='B' cell_row_span=1 cell_column_span=1
++++++++++++++STATIC_TEXT label='B'
++++++++++++++++UNKNOWN label='B'
++++++++++TABLE_ROW row_index=1
++++++++++++CELL hidden cell_row_span=1 cell_column_span=1
++++++++++++CELL label='D' cell_row_index=1 cell_row_span=1 cell_column_span=1
++++++++++++++STATIC_TEXT label='D'
++++++++++++++++UNKNOWN label='D'