18746
The results reveal that the reaction of the unsaturated lipid 1 - palmitoyl - 2 - oleoyl - sn - glycero - 3 - phosphocholine , POPC , with ozone leads to the rapid loss of the terminal C9 portion of the oleoyl strand of POPC from the air - water interface .
 Chemical: 1 - palmitoyl - 2 - oleoyl - sn - glycero - 3 - phosphocholine; Chemical: POPC; Chemical: ozone; Chemical: oleoyl; Chemical: POPC
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: 1 - palmitoyl - 2 - oleoyl - sn - glycero - 3 - phosphocholine; Chemical: POPC; Chemical: ozone; Chemical: oleoyl; Chemical: POPC