19757
Three - dimensional conformational analysis using the PubChem Database ( http : / / pubchem . ncbi . nlm . nih . gov ) showed that the cytotoxic potency of the C - 18 fatty acids was related to their degree of conformational similarity to our cytotoxic reference compound , punicic acid , based on optimized shape ( ST ) and feature ( CT ) similarity scores , with jacaric acid being most ' biosimilar ' ( ST ( ST - opt ) = 0 . 81 ; CT ( CT - opt ) = 0 . 45 ) .
 Chemical: C - 18 fatty acids; Chemical: punicic acid; Chemical: jacaric acid
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: C - 18 fatty acids; Chemical: punicic acid; Chemical: jacaric acid