(1)  2 ≥ 
	[1, 0, 0, 0, 0]
	[0, 1, 0, 0, 0]
	[0, 0, 1, 0, 0]

(2)  1 ≥ 
	[1, 0, 0, 0, 0]
	[1, 0, 0, 0, 0]
	[0, 0, 0, 0, 0]

