5080
An empirical comparison of CFG filtering techniques for LTAG and HPSG is presented .
 used for: CFG filtering techniques, LTAG; used for: CFG filtering techniques, HPSG; compare: LTAG, HPSG
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  CFG filtering techniques, LTAG; CFG filtering techniques, HPSG; LTAG, HPSG 
Answer:
 used for: CFG filtering techniques, LTAG; used for: CFG filtering techniques, HPSG; compare: LTAG, HPSG