17384
In a previous study , we have reported that a heteropolysaccharide BIWS - 4b from the fruit bodies of B . inquinans ( Fries ) exhibited markedly antimalarial and immunostimulating activities .
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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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