18728
This study involved development of a peptide to characterize the intrinsic structure of the LPA ( 1 ) GPCR second EL .
 Chemical: LPA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: LPA 
Answer:
 Chemical: LPA