22385
Reversed - phase liquid chromatography coupled to negative - ion electrospray tandem mass spectrometry ( RP - LC / ESI - MS / MS ) was used to study the fatty acid profile from the oil of harvested field pea ( Pisum sativum ) varieties as part of a research project to develop this legume as a commercial oilseed for Canada .
 Chemical: fatty acid
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: fatty acid