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Language/Type: VB parameters return

The following console program uses parameters and produces five lines of output. What are they?

Public Module ParameterMysteryExam2
    Public Sub Main()
        Dim x As String = "happy"
        Dim y As String = "pumpkin"
        Dim z As String = "Orange"
        Dim pumpkin As String = "sleepy"
        Dim orange As String = "vampire"

        Orange(y, x, z)
        x = Orange(x, z, y)
        Orange(pumpkin, z, "y")
        z = "green"
        Orange("x", "pumpkin", z)
        Orange(x, z, orange)
    End Sub

    Public Function Orange(z As String, y As String, x As String)
        Console.WriteLine(y & " and " & z & " were " & x)
        Return x + y + z
    End Function
End Module
line 1
line 2
line 3
line 4
line 5

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