30494
However , there has been a controversy whether or not cells expressing FPR2 / ALX , such as neutrophils , respond to LXA4 .
 Chemical: LXA4
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: LXA4