graph graph_49
{
	node
	[
		shape = "box"
	]
	course
	institute
	student
	node
	[
		shape = "ellipse"
	]
	{
		node
		[
			label = "name"
		]
		name0
		name1
		name2
	}
	code
	grade
	number
	name0 -- course
	code -- course
	graph
	[
		fontsize = "20"
	]
}
