ucla_relax

group: ucla examples
				description[[ the data for this dataset was generated using {'<'}http://www.generatedata.com/>

				* the relation _Video_ contains basic information about YouTube videos.
				* the relation _Comment_ contains the basic information of a YouTube comment. A video can have multiple comments.
				]]

				youtube_video = { 
				video_id title channel cat_id views likes dislikes
				XpVt6Z1Gjjo "1 YEAR OF VLOGGING" "Logan Paul Vlogs" 24 4394029	320053	5931
				cLdxuaxaQwc "My Response"	Pewter	22	5845909	576597	39774
				Ayb_2qbZHm4 "Honest College Tour"	CollegeHumor	23	859289	34485	726
				EVp4-qjWVJE "Chargers vs. Broncos"	NFL	17	743947	6126	352
				}

				youtube_comment = {
				video_id	comment_id	comment	likes	replies
				cLdxuaxaQwc	xl418Pq1	"Love you Pooter don't apologize your fine"	0	0
				cLdxuaxaQwc	yV7x88ba	"Yo this was funny af"	0	0
				Ayb_2qbZHm4	UB0bn1zz	"That word is not okay to say because.."	0	0
				Ayb_2qbZHm4	mBb7991a	"Yo this was funny af"	0	0
				}
				
				Instructor = {
				InsID	name
				1	"Smallberg, D. A."
				2	"Reinman, G. D."
				3	"Eggert, P. R."
				4	"Xu, H"
				5	"Lu, S"
				6	"Reiher, P. L."
				7	"Rosario, R. R."
				8	"van Den Broeck, G."
				9	"Ostrovsky, R."
				10	"Campbell, M. L."
				}
				
				Teaches= {
				InsID	course
				1	"COM SCI 31"
				1	"COM SCI 32"
				2	"COM SCI 33"
				3	"COM SCI 35L"
				3	"COM SCI 130"
				3	"COM SCI 131"
				4	"COM SCI 111"
				5	"COM SCI 118"
				6	"COM SCI 136"
				7	"COM SCI 143"
				8	"COM SCI 161"
				9	"COM SCI 180"
				10	"COM SCI 181"
				}
				
				Foo = {
				A	B
				1	2
				1	8
				1	6
				}
				
				Bar = {
				C	D
				3	4
				2	4
				}
				
				Teaches2 = {
				InsID	course
				1	"201031"
				1	"201032"
				2	"201033"
				3	"20135L"
				3	"201130"
				3	"201131"
				4	"201111"
				5	"201118"
				6	"201136"
				7	"201143"
				8	"201161"
				9	"201180"
				10	"201181"
				}
				
				Course2= {
				course	course_name
				"201031"	"COM SCI 31"
				"201032"	"COM SCI 32"
				"201033"	"COM SCI 33"
				"20135L"	"COM SCI 35L"
				"201130"	"COM SCI 130"
				"201131"	"COM SCI 131"
				"201111"	"COM SCI 111"
				"201118"	"COM SCI 118"
				"201136"	"COM SCI 136"
				"201143"	"COM SCI 143"
				"201161"	"COM SCI 161"
				"201180"	"COM SCI 180"
				"201181"	"COM SCI 181"
				}
				
				ThetaJoinExR1 = {
				A	B
				"alpha"	"beta"
				"beta"	"beta"
				}
				
				ThetaJoinExR2 = {
				A	C
				"beta"	"alpha"
				"alpha"	"gamma"
				}