1969
Such qualitative information can be formulated as a Qualitative Constraint Network -LRB- QCN -RRB- .
 used for: Qualitative Constraint Network -LRB- QCN -RRB-, qualitative information
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:  Qualitative Constraint Network -LRB- QCN -RRB-, qualitative information 
Answer:
 used for: Qualitative Constraint Network -LRB- QCN -RRB-, qualitative information