Question: What school did Martin Luther King go to that publishes the periodical journal Crozer Quarterly?
Answer(s):
answer: Crozer Theological Seminary

SPARQL query:
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WHERE {
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FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
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?y ns:education.education.institution ?x .
?x ns:book.periodical_publisher.periodicals_published ?c .
?c ns:book.periodical_publisher_period.periodical ns:m.04f0mkl . 
}