...                   narrative_marker  \
0  {'turning_point': '', 'self_test_item': '', 'r...   
1  {'turning_point': '', 'self_test_item': '', 'r...   
2  {'turning_point': '', 'self_test_item': '', 'r...   
3  {'turning_point': '', 'self_test_item': '', 'r...   
4  {'turning_point': '', 'self_test_item': '', 'r...   

                                            evidence  
0  {'quote': None, 'verified...