BUSINESS
bid	name	category	city	country
1	Urban	Bar	Thessaloniki	Greece
2	Oregano	Grill	Xwra	Greece
3	Beanhive	Restaurant	Dublin	Ireland
4	Schinovatis	Café	Athens	Greece
5	Arcadia	Restaurant	Athens	Greece
6	Petrino	Restaurant	Athens	Greece
7	Taf	Café	Athens	Greece
8	Elxate	Pub	Thessaloniki	Greece
9	Roka	Restaurant	London	England
10	Chevalier	Cafe	Ioannina	Greece
11	Balsamico	Restaurant	Ioannina	Greece
12	Paprika	Restaurant	Ioannina	Greece

USER
uid	name
1	Andreas
2	Aris
3	Anna
4	Dimitris	
5	Katerina	
6	Kostas
7	Maria
8	Panos
9	Petros
2010	Vasilis

REVIEW		
bid	uid	stars	date
1	1	3	2015-12-10
1	3	4	2015-12-10
2	5	2	2013-11-03
4	5	3	2015-05-08
2	1	5	2015-05-08
8	7	1	2015-12-10
5	2	1	2015-10-10
1	3	1	2014-05-03
2	4	1	2013-11-03
9	5	1	2015-12-10
4	6	1	2015-03-31
8	8	1	2015-10-10
2	9	1	2014-05-03
9	9	5	2015-03-31
9	3	1	2014-05-03
4	1	3	2015-12-10
4	7	3	2015-05-08
5	1	3	2015-07-31
5	7	3	2013-11-03
6	1	3	2015-10-10
6	7	3	2014-05-03
7	1	3	2015-07-31
7	7	3	2015-12-10
3	2	2	2015-10-10
9	2	4	2015-05-08
3	1	1	2015-12-10
9	1	2	2015-03-31
11	2010	2	2015-03-31