return me all the papers, which contain the keyword " Natural Language " .
SELECT t3.title FROM publication_keyword AS t2 JOIN keyword AS t1 ON t2.kid  =  t1.kid JOIN publication AS t3 ON t3.pid  =  t2.pid WHERE t1.keyword  =  "Natural Language";
SELECT t3.title FROM publication_keyword AS t2 JOIN keyword AS t1 ON t2.kid  =  t1.kid JOIN publication AS t3 ON t3.pid  =  t2.pid WHERE t1.keyword  =  "Natural Language";
[{'Nenhum': 'Nenhum resultado encontrado'}]