9171
Nanoscale stabilization of new phases in the PbTe - Sb2Te3 system : Pb ( m ) Sb ( 2n ) Te ( m + 3n ) nanocrystals .
 Chemical: PbTe; Chemical: Sb2Te3; Chemical: Pb ( m ) Sb ( 2n ) Te ( m + 3n )
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: PbTe; Chemical: Sb2Te3; Chemical: Pb ( m ) Sb ( 2n ) Te ( m + 3n )