Question: who was the number 1 pick in the 1967 nba draft
[{'answer': 'Jimmy Walker', 'provenance': [{'wikipedia_id': '5035602', 'title': '1967 NBA draft', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Draft selections and draftee career notes.\n'}]}]