timestamp	ip	host	browser	uri
20180324-03:45:39	54.87.216.80	ec2-54-87-216-80.compute-1.amazonaws.com	BUbiNG (+http://law.di.unimi.it/BUbiNG.html#wc)	/robots.txt
20180324-03:50:27	54.87.216.80	ec2-54-87-216-80.compute-1.amazonaws.com	BUbiNG (+http://law.di.unimi.it/BUbiNG.html#wc)	/robots.txt