13221
Tumor uptake occurred in vivo after cisplatin injection due to the apoptosis induction , which not observed in the untreated tumors .
 Chemical: cisplatin
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: cisplatin 
Answer:
 Chemical: cisplatin