那为什么海水是咸的呢？
因为含有盐分呀。[{'character': '因', 'pinyin': 'in1', 'highest pitch': 9.94, 'lowest pitch': 9.17, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei4', 'highest pitch': 10.04, 'lowest pitch': 8.59, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '含', 'pinyin': 'han2', 'highest pitch': 10.09, 'lowest pitch': 8.25, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou3', 'highest pitch': 10.22, 'lowest pitch': 6.73, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '盐', 'pinyin': 'ian2', 'highest pitch': 8.32, 'lowest pitch': 5.91, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '分', 'pinyin': 'fen4', 'highest pitch': 11.33, 'lowest pitch': 8.32, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '呀', 'pinyin': 'ia5', 'highest pitch': 9.02, 'lowest pitch': 5.78, 'duration': 0.3, 'prosody hierarchy': '#4'}]