timestamp	ip	host	browser	uri
20180307-03:15:45	34.232.66.124	ec2-34-232-66-124.compute-1.amazonaws.com	BUbiNG (+http://law.di.unimi.it/BUbiNG.html#wc)	/robots.txt
20180307-03:21:00	34.232.66.124	ec2-34-232-66-124.compute-1.amazonaws.com	BUbiNG (+http://law.di.unimi.it/BUbiNG.html#wc)	/robots.txt