4935
Although limited knowledge of the mollusc transcriptome makes it difficult to interpret the effects of IBU on clams , the gene transcription analysis using DNA microarrays enabled the identification of the putative molecular mode of action of the IBU .
 Chemical: IBU; Chemical: IBU
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: IBU; Chemical: IBU