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Systemic vascular resistance was increased by PPA 28 % ( from 1710 + / - 200 to 2190 + / - 700 dyne X sec / cm5 ) and was further increased by propranolol 22 % ( to 2660 + / - 1200 dyne X sec / cm5 ) .
 Chemical: PPA; Chemical: propranolol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: PPA; Chemical: propranolol