{HEAD ~ The carrier} 1, wherein {TAIL ~ the average particle size} of said hydrophilic silica is within the range of 5 to 50 nm in terms of a primary number average particle size 
wherein
{ HEAD ~ The carrier } 1 , wherein { TAIL ~ the average particle size } of said hydrophilic silica is within the range of 5 to 50 nm in terms of a primary number average particle size
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH