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This system consists of one or more reference times and temporal perspective times , the speech time and the location time .
 reference times, system; reference times, temporal perspective times; temporal perspective times, system; temporal perspective times, speech time; speech time, system; speech time, location time; location time, system
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:
 reference times, system; reference times, temporal perspective times; temporal perspective times, system; temporal perspective times, speech time; speech time, system; speech time, location time; location time, system