What was Maya Angelou's first poem collection?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q19526', 'id': 0, 'label': 'Maya Angelou'}, {'type': 'INTERNAL', 'name_': 'Q17018343', 'id': 1, 'label': 'Oh Pray My Wings Are Gonna Fit Me Well'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q6316015', 'id': 2, 'label': "Just Give Me a Cool Drink of Water 'fore I Diiie"}], 'links': [{'name_': 'P50', 'source': 1, 'target': 0, 'label': 'author'}, {'name_': 'P155', 'source': 1, 'target': 2, 'label': 'follows'}]}