Question: the site of the first european missionary activity was the principal city of
[{'answer': 'Philippi', 'provenance': [{'wikipedia_id': '25727573', 'title': 'Early centers of Christianity', 'start_paragraph_id': 25, 'start_character': 356, 'end_paragraph_id': 25, 'end_character': 364, 'bleu_score': 1.0, 'section': 'Section::::Eastern Roman Empire.:Greece.\n'}]}, {'provenance': [{'wikipedia_id': '25727573', 'title': 'Early centers of Christianity', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 504, 'bleu_score': 0.8978846843412571, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2065845460961665752}, 'section': 'Section::::Eastern Roman Empire.:Greece.\n'}]}]