8927
`` To explain complex phenomena , an explanation system must be able to select information from a formal representation of domain knowledge , organize the selected information into multisentential discourse plans , and realize the discourse plans in text .
 explanation system, discourse plans
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:
 explanation system, discourse plans