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Metagrammatical formalisms that combine context-free phrase structure rules and metarules -LRB- MPS grammars -RRB- allow concise statement of generalizations about the syntax of natural languages .
 part of: context-free phrase structure rules, Metagrammatical formalisms; conjunction: context-free phrase structure rules, metarules -LRB- MPS grammars -RRB-; part of: metarules -LRB- MPS grammars -RRB-, Metagrammatical formalisms
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:
 part of: context-free phrase structure rules, Metagrammatical formalisms; conjunction: context-free phrase structure rules, metarules -LRB- MPS grammars -RRB-; part of: metarules -LRB- MPS grammars -RRB-, Metagrammatical formalisms