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We attack an inexplicably under-explored language genre of spoken language -- lyrics in music -- via completely unsuper-vised induction of an SMT-style stochastic transduction grammar for hip hop lyrics , yielding a fully-automatically learned challenge-response system that produces rhyming lyrics given an input .
 hyponym of: lyrics in music, under-explored language genre of spoken language; used for: unsuper-vised induction, under-explored language genre of spoken language; used for: unsuper-vised induction, SMT-style stochastic transduction grammar; used for: unsuper-vised induction, fully-automatically learned challenge-response system; feature of: hip hop lyrics, SMT-style stochastic transduction grammar; used for: fully-automatically learned challenge-response system, rhyming lyrics
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:  lyrics in music, under-explored language genre of spoken language; unsuper-vised induction, under-explored language genre of spoken language; unsuper-vised induction, SMT-style stochastic transduction grammar; unsuper-vised induction, fully-automatically learned challenge-response system; hip hop lyrics, SMT-style stochastic transduction grammar; fully-automatically learned challenge-response system, rhyming lyrics 
Answer:
 hyponym of: lyrics in music, under-explored language genre of spoken language; used for: unsuper-vised induction, under-explored language genre of spoken language; used for: unsuper-vised induction, SMT-style stochastic transduction grammar; used for: unsuper-vised induction, fully-automatically learned challenge-response system; feature of: hip hop lyrics, SMT-style stochastic transduction grammar; used for: fully-automatically learned challenge-response system, rhyming lyrics