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We train our models on a dataset of urban aerial imagery consisting of ` same ' and ` different ' pairs , collected for this purpose , and characterize the problem via a human study with annotations from Amazon Mechanical Turk .
 dataset of urban aerial imagery, models; human study, problem; annotations from Amazon Mechanical Turk, human study
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 dataset of urban aerial imagery, models; human study, problem; annotations from Amazon Mechanical Turk, human study