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Phagocytotic assay by fluorescein isothiocyanate - dextran internalization showed that PSG - 1 stimulated the phagocytosis of macrophages .
 Chemical: fluorescein isothiocyanate
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: fluorescein isothiocyanate