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The system incorporates a decision-tree classifier for 30 scf types which tests for the presence of grammatical relations -LRB- grs -RRB- in the output of a robust statistical parser .
 part of: decision-tree classifier, system; used for: decision-tree classifier, grammatical relations -LRB- grs -RRB-
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: decision-tree classifier, system; used for: decision-tree classifier, grammatical relations -LRB- grs -RRB-