http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/small/6-1-22.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/small/6-2-22.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/small/6-3-22.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/small/6-4-22.spk.txt.bz2