http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/5-1-35.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/5-2-35.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/5-3-35.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-1-35.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-2-35.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-3-35.spk.txt.bz2
http://potterlab.bme.gatech.edu/development-data/simple-text/daily/spont/sparse/7-4-35.spk.txt.bz2