15764
Highest colour intensities and best stabilities were observed for model systems containing PC - E at a molar anthocyanin : ferric ion ratio of 1 : 2 .
 Chemical: anthocyanin; Chemical: ferric
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: anthocyanin; Chemical: ferric