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This article deals with the interpretation of conceptual operations underlying the communicative use of natural language -LRB- NL -RRB- within the Structured Inheritance Network -LRB- SI-Nets -RRB- paradigm .
 used for: natural language -LRB- NL -RRB-, Structured Inheritance Network -LRB- SI-Nets -RRB- paradigm
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:  natural language -LRB- NL -RRB-, Structured Inheritance Network -LRB- SI-Nets -RRB- paradigm 
Answer:
 used for: natural language -LRB- NL -RRB-, Structured Inheritance Network -LRB- SI-Nets -RRB- paradigm