31.
If โWhiteโ is called โBlueโ, โBlueโ is called โRedโ, โRedโ is called โYellowโ, Yellow' is called โGreenโ, โGreenโ is called โBlackโ, โBlackโ is called โVioletโ, and โVioletโ is called โOrangeโ, then what would be the colour of human blood?