2000
The same trend was noted between YG 4 . 5 heifers and YG 5 . 5 steers , indicating a sex - related deposition of seam fat in fed cattle .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None