reading comprehension darling. 4 hours straight is different than once in 4 hours.  
  
ahem...reading comprehension muffin,  i said at LEAST once in 4 hours.  that'd be a good goal for you.  if you keep trying i'm sure you'll get her there eventually. 
  
otoh, i get more than that in 4 hours so i don't care what you do with your 4 minutes.  just trying to pass along some friendly encouragement.