{HEAD ~ The improvement} 1, wherein {TAIL ~ the pigment} is an isoindolinone pigment 
wherein
{ HEAD ~ The improvement } 1 , wherein { TAIL ~ the pigment } is an isoindolinone pigment
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH