text: ##import matplotlib
  import numpy
  import pylab
  
  data = [(4.9,'2011/03/12 23:57:34'),
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  (4.9,'2011/03/09 06:12:13'),
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  (2.5,'2011/03/09 03:51:21'),
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  (5.2,'2011/03/09 03:08:36'),
  (5.6,'2011/03/09 02:57:17'),
  (7.2,'2011/03/09 02:45:20'),
  (4.6,'2011/03/09 01:47:47'),
  (4.7,'2011/03/09 01:30:27')]
  
  ydata = []
  
  for t in data:
  	ydata.append(t[0])
  
  pylab.plot(ydata)
  pylab.title('Earthquake Magnitude in Japan from 3/9-3/12')
  pylab.xlabel('Time')
  pylab.ylabel('Magnitude')
  pylab.show()
  
  