Swift quiz advanced level

1

What will be the output on execution of the following code?

var footballTeam = Set<String>()
footballTeam.insert("Player 1")
footballTeam.insert("Player 2")
footballTeam.insert("Player 3")

let footballTeam2 = footballTeam

if footballTeam.isSubset(of: footballTeam2) {
  print("footballTeam is subset")
} else {
  print("footballTeam is not a subset")
}