210']]],
['R1', 'What revolved around the finding?', [['head', 'A40_46'], ['dep', 'A51_58']]],
['R2', 'What revolved around the finding?', [['head', 'A40_46'], ['dep', 'A26_30']]],
['R3', 'What could preliterate cultures not have?', [['head', 'A164_169'], ['dep', 'A129_137']]],
['R4', 'What could preliterate cultures not have?', [['head', 'A164_169'], ['dep', 'A231_236']]],
['R5', 'What could preliterate cultures not have?', [['head', 'A164_169'], ['dep', 'A148_159']]],
['R6', 'What could preliterate cultur