18749
The reaction of POPC with ozone also leads to a loss of material from the palmitoyl strand , but the loss of palmitoyl material occurs after the loss of the terminal C9 portion from the oleoyl strand of the molecule , suggesting that the palmitoyl material is lost in a secondary reaction step .
 Chemical: POPC; Chemical: ozone; Chemical: palmitoyl; Chemical: palmitoyl; Chemical: oleoyl; Chemical: palmitoyl
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: POPC; Chemical: ozone; Chemical: palmitoyl; Chemical: palmitoyl; Chemical: oleoyl; Chemical: palmitoyl