{HEAD ~ The device} 24, wherein {TAIL ~ said amount} is more than 9 g/m2 
wherein
{ HEAD ~ The device } 24 , wherein { TAIL ~ said amount } is more than 9 g / m2
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH