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The aim of this paper is to provide a survey and a practical comparison of fundamental rule-invocation strategies within context-free chart parsing .
 rule-invocation strategies, context-free chart parsing
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:
 rule-invocation strategies, context-free chart parsing