2985
An objective function is defined to impose lo-calization constraint , in addition to the non-negativity constraint in the standard NMF -LSB- 1 -RSB- .
 used for: objective function, lo-calization constraint; part of: non-negativity constraint, NMF
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:
 used for: objective function, lo-calization constraint; part of: non-negativity constraint, NMF