22791
The ZB GaAs nanowire cores are first fabricated at high temperature by utilizing the Ga droplets as the catalyst and controlling the triple phase line nucleation , then the ( Ga , Mn ) As shells are epitaxially grown on the side facets of the GaAs core at low temperature .
 Chemical: GaAs; Chemical: Ga; Chemical: ( Ga , Mn ) As; Chemical: GaAs
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: GaAs, Ga, ( Ga , Mn ) As, GaAs 
Answer:
 Chemical: GaAs; Chemical: Ga; Chemical: ( Ga , Mn ) As; Chemical: GaAs