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We discuss several applications of the result to the problem of distributional approximation of probabilistic context-free grammars by means of probabilistic finite automata .
 feature of: distributional approximation, probabilistic context-free grammars; used for: probabilistic finite automata, distributional approximation
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: distributional approximation, probabilistic context-free grammars; used for: probabilistic finite automata, distributional approximation