How many of the books in The 20th Century's Greatest Hits: 100 English-Language Books of Fiction were published before 1906?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q40734', 'id': 0, 'label': "Le Monde's 100 Books of the Century"}, {'type': 'INTERNAL', 'name_': 'Q28050019', 'id': 1, 'label': 'list of best books'}, {'type': 'INTERNAL', 'name_': 'Q727408', 'id': 2, 'label': 'Lord Jim'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q4630676', 'id': 3, 'label': "20th Century's Greatest Hits: 100 English-Language Books of Fiction"}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q129778', 'id': 4, 'label': 'Heart of Darkness'}], 'links': [{'name_': 'P31', 'source': 0, 'target': 1, 'label': 'instance of'}, {'name_': 'P166', 'source': 2, 'target': 0, 'label': 'award received'}, {'name_': 'P155', 'source': 2, 'target': 4, 'label': 'follows'}, {'name_': 'P31', 'source': 3, 'target': 1, 'label': 'instance of'}]}