16449
Novel microwave assisted chemical synthesis of Nd 2 Fe 1 4 B hard magnetic nanoparticles .
 Chemical: Nd 2 Fe 1 4 B
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: Nd 2 Fe 1 4 B