@startuml
skinparam actorStyle awesome

package Students {
	actor student1 as s1
	actor student2 as s2
	actor student3 as s3
	actor student4 as s4
	actor student5 as s5
}

package Classes {
	usecase "Class 1" as c1
	usecase "Class 2" as c2
	usecase "Class 3" as c3
	usecase "Class 4" as c4
}

s1 --> c1
s2 --> c1
s3 --> c1
s4 --> c1
s5 --> c1

s1 --> c2
s2 --> c2

s1 --> c3
s2 --> c3
s3 --> c3

s4 --> c4
s5 --> c4

@enduml