Question: what was one of the weapon technologies that emerged during the crusades
[{'answer': 'counterweight trebuchets', 'provenance': [{'wikipedia_id': '1390149', 'title': 'Medieval technology', 'start_paragraph_id': 165, 'start_character': 235, 'end_paragraph_id': 165, 'end_character': 259, 'bleu_score': 1.0, 'section': 'Section::::Military technologies.:Mechanical artillery.\n'}]}, {'provenance': [{'wikipedia_id': '1390149', 'title': 'Medieval technology', 'start_paragraph_id': 165, 'start_character': 0, 'end_paragraph_id': 165, 'end_character': 395, 'bleu_score': 0.652663153407536, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 681719933570533624}, 'section': 'Section::::Military technologies.:Mechanical artillery.\n'}]}]