18456
We report the seeded synthesis of gold nanoparticles ( GNPs ) via the reduction of HAuCl4 by ( L31 and F68 ) triblock copolymer ( TBP ) mixtures .
 Chemical: HAuCl4
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: HAuCl4