这次事故有多少人受伤了？
据悉，伤者以骨折和外伤为主。[{'character': '据', 'pinyin': 'jv4', 'highest pitch': 9.39, 'lowest pitch': 8.3, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '悉', 'pinyin': 'xi1', 'highest pitch': 9.84, 'lowest pitch': 8.3, 'duration': 0.33, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.16}, {'character': '伤', 'pinyin': 'shang1', 'highest pitch': 11.59, 'lowest pitch': 10.74, 'duration': 0.33, 'prosody hierarchy': 'null'}, {'character': '者', 'pinyin': 'zhe3', 'highest pitch': 10.74, 'lowest pitch': 6.61, 'duration': 0.31, 'prosody hierarchy': '#2'}, {'character': '以', 'pinyin': 'i2', 'highest pitch': 10.58, 'lowest pitch': 7.5, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '骨', 'pinyin': 'gu3', 'highest pitch': 8.21, 'lowest pitch': 5.65, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '折', 'pinyin': 'zhe2', 'highest pitch': 9.24, 'lowest pitch': 6.25, 'duration': 0.25, 'prosody hierarchy': '#1'}, {'character': '和', 'pinyin': 'he2', 'highest pitch': 12.89, 'lowest pitch': 7.61, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '外', 'pinyin': 'uai4', 'highest pitch': 10.91, 'lowest pitch': 8.65, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '伤', 'pinyin': 'shang1', 'highest pitch': 11.59, 'lowest pitch': 7.98, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 7.98, 'lowest pitch': 6.18, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '主', 'pinyin': 'zhu3', 'highest pitch': 7.08, 'lowest pitch': 4.56, 'duration': 0.29, 'prosody hierarchy': '#4'}]