As such we can say that a square is a  type of rectangle which is a type of shape. We can therefore pass a  square into any function that expects a shape or rectangle object  because a square is covariant with both a rectangle and a shape.
Format: Audio CD. The song Rule the World was featured in the motion picture Stardust which was released in the US this year. Although little known in the US, Take That is a top act in Europe and thing song has hit the top 10 list in the UK immediately after its release.
Maurice White. Maurice White is a genuine R&B/pop legend. As leader of the Grammy-winning, multi-platinum group Earth Wind & Fire, he has been their lead singer (along with Philip Bailey), main songwriter, and record producer.