Question: who is the writer of a walk to remember
[{'answer': 'Nicholas Sparks', 'provenance': [{'wikipedia_id': '19918431', 'title': 'A Walk to Remember (novel)', 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'American writer Nicholas Sparks', 'provenance': [{'wikipedia_id': '19918431', 'title': 'A Walk to Remember (novel)', 'start_paragraph_id': 1, 'start_character': 33, 'end_paragraph_id': 1, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19918431', 'title': 'A Walk to Remember (novel)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 316, 'bleu_score': 0.905341140211783, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15689504729024278249}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '855797', 'title': 'A Walk to Remember', 'section': 'Section::::Home media.\n', 'start_paragraph_id': 44, 'end_paragraph_id': 44, 'meta': {'evidence_span': ['Nicholas Sparks', 'The DVD contains two commentaries (one featuring Shane West, Mandy Moore, and director Adam Shankman; the second featuring screenwriter Karen Janszen and author Nicholas Sparks),']}}]}, {'provenance': [{'wikipedia_id': '19918431', 'title': 'A Walk to Remember (novel)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Nicholas Sparks', 'A Walk to Remember is a novel by American writer Nicholas Sparks, released in October 1999. The novel, set in 19581959 in Beaufort, North Carolina, is a story of two teenagers who fall in love with each other despite the disparity of their personalities. "A Walk to Remember" is adapted in the film of the same name.', 'A Walk to Remember is a novel by American writer Nicholas Sparks, released in October 1999. The novel, set in 19581959 in Beaufort, North Carolina, is a story of two teenagers who fall in love with each other despite the disparity of their personalities.']}}]}]