So now Rosneft sells 30-40% of its oil through a Dutch-registered trading firm, Gunvor, whose ownership structure looks like a Chinese puzzle.
Tangram, an ancient Chinese puzzle, are said to have a history that goes back many thousands of years.
The two children, picked up by some policeman and placed in the refuge, or stolen by some mountebank, or having simply strayed off in that immense Chinese puzzle of a Paris, did not return.