Question: who is the lead singer of counting crows
[{'answer': 'Adam Fredric Duritz', 'provenance': [{'wikipedia_id': '205487', 'title': 'Adam Duritz', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '205487', 'title': 'Adam Duritz', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 232, 'bleu_score': 0.658445649601826, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2704103417790975573}, 'section': 'Section::::Abstract.'}]}]