11983
Although the assessment of toxicity of various agents , - omics ( genomic , proteomic , metabolomic , etc . ) data has been accumulated largely , the acquirement of toxicity information of variety of molecules through experimental methods still remains a difficult task .
 None
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:  
Answer:
 None