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 .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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