6750
This paper proposes a series of modifications to the left corner parsing algorithm for context-free grammars .
 used for: left corner parsing algorithm, context-free grammars
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  left corner parsing algorithm, context-free grammars 
Answer:
 used for: left corner parsing algorithm, context-free grammars