Question: who designed the church of the holy cross in southwest germany
[{'answer': 'Martin Weber', 'provenance': [{'wikipedia_id': '15575403', 'title': 'Holy Cross Church, Frankfurt-Bornheim', 'start_paragraph_id': 1, 'start_character': 258, 'end_paragraph_id': 1, 'end_character': 270, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]