8600
We argue in favor of the the use of labeled directed graph to represent various types of linguistic structures , and illustrate how this allows one to view NLP tasks as graph transformations .
 labeled directed graph, linguistic structures; labeled directed graph, NLP tasks; this, NLP tasks
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:
 labeled directed graph, linguistic structures; labeled directed graph, NLP tasks; this, NLP tasks