Given this Ruby code, what will be the output?

Given this Ruby code, what will be the output?

class Animal
  def sound
    'Some sound'
  end
end

class Dog < Animal
  def sound
    super + ' and Bark'
  end
end

class Cat < Animal
  def sound
    super + ' and Meow'
  end
end

puts Dog.new.sound
puts Cat.new.sound