Question: who sang i'll be over you by toto
[{'answer': 'guitarist Steve Lukather', 'provenance': [{'wikipedia_id': '12238086', 'title': "I'll Be Over You", 'start_paragraph_id': 1, 'start_character': 230, 'end_paragraph_id': 1, 'end_character': 254, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12238086', 'title': "I'll Be Over You", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 441, 'bleu_score': 0.9383908431221111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12690838673177400985}, 'section': 'Section::::Abstract.'}]}]