drop tower : scream zone
most of the drop towers were opened prior to the year 2000 .
{'scope': 'all', 'col': '6', 'most_or_all': 'most', 'criterion': 'less_than', 'value': '2000', 'subset': None}
{'func': 'most_less', 'args': ['all_rows', 'opened', '2000'], 'result': True, 'ind': 0, 'tointer': 'for the opened records of all rows , most of them are less than 2000 .', 'tostr': 'most_less { all_rows ; opened ; 2000 } = true'}
most_less { all_rows ; opened ; 2000 } = true
for the opened records of all rows , most of them are less than 2000 .
{'most_less_0': 'most_less', 'result_1': 'true', 'all_rows_2': 'all_rows', 'opened_3': 'opened', '2000_4': '2000'}
['park', 'tower height', 'drop height', 'speed', 'model', 'opened', 'height requirement']
[["canada 's wonderland", '230feet', '200feet', '62 mph', 'giant drop', '1997', 'inches ( cm )'], ['carowinds', '174feet', '100feet', '56 mph', 'giant drop', 'march 1996', 'inches ( cm )'], ["california 's great america", '224feet', '207feet', '62 mph', 'giant drop', 'march 1996', 'inches ( cm )'], ['kings dominion', '305feet', '272feet', '72 mph', 'gyro drop', 'march 22 , 2003', 'inches ( cm )'], ['kings island', '315feet', '264feet', '67 mph', 'gyro drop', '1999', 'inches ( cm )']]