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Extended CF grammars -LRB- grammars with regular expressions at the right hand side -RRB- can be parsed with a simple modification of the LR-parser for normal CF grammars .
 feature of: regular expressions, grammars; used for: LR-parser, Extended CF grammars; used for: LR-parser, CF grammars
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:
 feature of: regular expressions, grammars; used for: LR-parser, Extended CF grammars; used for: LR-parser, CF grammars