Question: Who was the VP for Lincoln, and wrote ,El Desarrollo de Las Habilidades de Pensamiento?
Answer(s):
answer: Andrew Johnson

SPARQL query:
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FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0gzh ns:government.us_president.vice_president ?x .
?x ns:book.author.works_written ns:m.0686qg7 . 
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