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The evolution of particles through the flow is tracked using a Flow Map , whose spatial gradients are subsequently used to setup a Cauchy Green Deformation tensor for quantifying the amount by which the neighboring particles have diverged over the length of the integration .
 used for: Flow Map, evolution of particles; used for: spatial gradients, Cauchy Green Deformation tensor
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:  Flow Map, evolution of particles; spatial gradients, Cauchy Green Deformation tensor 
Answer:
 used for: Flow Map, evolution of particles; used for: spatial gradients, Cauchy Green Deformation tensor