1300
The Arabidopsis FAD7 gene encodes a chloroplast omega - 3 fatty acid desaturase that catalyzes the desaturation of lipid - linked dienoic fatty acids ( 18 : 2 and 16 : 2 ) .
 GENE: Arabidopsis FAD7 gene; GENE: chloroplast omega - 3 fatty acid desaturase
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Arabidopsis FAD7 gene; GENE: chloroplast omega - 3 fatty acid desaturase