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We further show the usefulness of dormant independencies in model testing and induction by giving an algorithm that uses constraints entailed by dormant independencies to prune extraneous edges from a given causal graph .
 used for: dormant independencies, model testing; used for: dormant independencies, induction; conjunction: model testing, induction; used for: algorithm, extraneous edges; used for: constraints, algorithm; part of: extraneous edges, causal graph
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:  dormant independencies, model testing; dormant independencies, induction; model testing, induction; algorithm, extraneous edges; constraints, algorithm; extraneous edges, causal graph 
Answer:
 used for: dormant independencies, model testing; used for: dormant independencies, induction; conjunction: model testing, induction; used for: algorithm, extraneous edges; used for: constraints, algorithm; part of: extraneous edges, causal graph