class Parrot:
  def __init__(self, name, age):
    self.name = name
    self.age = age
  def sing(self, song):
    return "{} sings {}".format(self.name, song)
  def dance(self):
    return "{} is now dancing".format(self.name)
blu = Parrot("Blu", 10)
print(blu.sing("'happy'"))
print(blu.dance())