Question: where is charleston sc located on a map
[{'answer': 'located on Charleston Harbor', 'provenance': [{'wikipedia_id': '61024', 'title': 'Charleston, South Carolina', 'start_paragraph_id': 1, 'start_character': 309, 'end_paragraph_id': 1, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Charleston -- North Charleston -- Summerville Metropolitan Statistical Area'}, {'answer': "just south of the geographical midpoint of South Carolina 's coastline"}, {'provenance': [{'wikipedia_id': '61024', 'title': 'Charleston, South Carolina', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 748, 'bleu_score': 0.9039708307729291, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14318863899673831348}, 'section': 'Section::::Abstract.'}]}]