Question: who were the original members of signature sound
[{'answer': 'Ernie Haase', 'provenance': [{'wikipedia_id': '4581311', 'title': 'Ernie Haase & Signature Sound', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Garry Jones', 'provenance': [{'wikipedia_id': '4581311', 'title': 'Ernie Haase & Signature Sound', 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 138, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Shane Dunlap', 'provenance': [{'wikipedia_id': '4581311', 'title': 'Ernie Haase & Signature Sound', 'start_paragraph_id': 6, 'start_character': 488, 'end_paragraph_id': 6, 'end_character': 500, 'bleu_score': 1.0, 'section': 'Section::::History.:Formation.\n'}]}, {'answer': 'Doug Anderson', 'provenance': [{'wikipedia_id': '4581311', 'title': 'Ernie Haase & Signature Sound', 'start_paragraph_id': 1, 'start_character': 304, 'end_paragraph_id': 1, 'end_character': 317, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Tim Duncan', 'provenance': [{'wikipedia_id': '4581311', 'title': 'Ernie Haase & Signature Sound', 'start_paragraph_id': 6, 'start_character': 542, 'end_paragraph_id': 6, 'end_character': 552, 'bleu_score': 1.0, 'section': 'Section::::History.:Formation.\n'}]}, {'provenance': [{'wikipedia_id': '4581311', 'title': 'Ernie Haase & Signature Sound', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 851, 'bleu_score': 0.9855586187885531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4822155786220603193}, 'section': 'Section::::History.:Formation.\n'}]}]