16052
Lactose substituted zinc phthalocyanine : a near infrared fluorescence imaging probe for liver cancer targeting .
 Chemical: Lactose; Chemical: zinc phthalocyanine
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: Lactose, zinc phthalocyanine 
Answer:
 Chemical: Lactose; Chemical: zinc phthalocyanine