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Techniques for automatically training modules of a natural language generator have recently been proposed , but a fundamental concern is whether the quality of utterances produced with trainable components can compete with hand-crafted template-based or rule-based approaches .
 used for: Techniques, automatically training modules; part of: automatically training modules, natural language generator; evaluate for: utterances, trainable components; evaluate for: utterances, hand-crafted template-based or rule-based approaches; compare: trainable components, hand-crafted template-based or rule-based approaches
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: Techniques, automatically training modules; part of: automatically training modules, natural language generator; evaluate for: utterances, trainable components; evaluate for: utterances, hand-crafted template-based or rule-based approaches; compare: trainable components, hand-crafted template-based or rule-based approaches