Question: what is the triangular shaped area at each end of the greek temple called
[{'answer': 'tympanon', 'provenance': [{'wikipedia_id': '823229', 'title': 'Ancient Greek temple', 'start_paragraph_id': 60, 'start_character': 400, 'end_paragraph_id': 60, 'end_character': 408, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Elevation.:Cornice and geison.\n'}]}, {'provenance': [{'wikipedia_id': '823229', 'title': 'Ancient Greek temple', 'start_paragraph_id': 60, 'start_character': 0, 'end_paragraph_id': 60, 'end_character': 758, 'bleu_score': 0.983537688954433, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12708699550534613120}, 'section': 'Section::::Structure.:Elevation.:Cornice and geison.\n'}]}]