8541
The system combines an extended two-level morphology -LSB- Trost , 1991a ; Trost , 1991b -RSB- with a feature-based word grammar building on a hierarchical lexicon .
 used for: two-level morphology, system; conjunction: two-level morphology, feature-based word grammar; used for: hierarchical lexicon, feature-based word grammar
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:  two-level morphology, system; two-level morphology, feature-based word grammar; hierarchical lexicon, feature-based word grammar 
Answer:
 used for: two-level morphology, system; conjunction: two-level morphology, feature-based word grammar; used for: hierarchical lexicon, feature-based word grammar