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Diagrams are common tools for representing complex concepts , relationships and events , often when it would be difficult to portray the same information with natural images .
 used for: Diagrams, complex concepts; used for: Diagrams, relationships; used for: Diagrams, events; conjunction: complex concepts, relationships; conjunction: relationships, events
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 used for: Diagrams, complex concepts; used for: Diagrams, relationships; used for: Diagrams, events; conjunction: complex concepts, relationships; conjunction: relationships, events