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Toxoplasma gondii is sensitive to bulky pyrazolo [ 3 , 4 - d ] pyrimidine ( PP ) inhibitors due to the presence of a Gly gatekeeper in the essential calcium dependent protein kinase 1 ( CDPK1 ) .
 Chemical: pyrazolo [ 3 , 4 - d ] pyrimidine; Chemical: Gly; Chemical: calcium
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: pyrazolo [ 3 , 4 - d ] pyrimidine; Chemical: Gly; Chemical: calcium