The diameter of the football and the fullerene molecule are 22 cm and about 0.71 nm , respectively , hence the size ratio is ≈31,000,000:1 .
DET NOUN ADP DET NOUN CCONJ DET ADJ NOUN AUX NUM NOUN CCONJ ADV NUM NOUN , ADV , ADV DET NOUN NOUN AUX PROPN .