2826
Compared to the 2012 SRE , the i-vector challenge saw an increase in the number of participants by nearly a factor of two , and a two orders of magnitude increase in the number of systems submitted for evaluation .
 compare: SRE, i-vector challenge
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  SRE, i-vector challenge 
Answer:
 compare: SRE, i-vector challenge