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Systemic grammar has been used for AI text generation work in the past , but the implementations have tended be ad hoc or inefficient .
 Systemic grammar, AI text generation
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:
 Systemic grammar, AI text generation