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Pipelined Natural Language Generation -LRB- NLG -RRB- systems have grown increasingly complex as architectural modules were added to support language functionalities such as referring expressions , lexical choice , and revision .
 used for: architectural modules, language functionalities; hyponym of: referring expressions, language functionalities; conjunction: referring expressions, lexical choice; hyponym of: lexical choice, language functionalities; conjunction: lexical choice, revision; hyponym of: revision, language functionalities
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: architectural modules, language functionalities; hyponym of: referring expressions, language functionalities; conjunction: referring expressions, lexical choice; hyponym of: lexical choice, language functionalities; conjunction: lexical choice, revision; hyponym of: revision, language functionalities