How many papers are related to deep learning ?
SELECT DISTINCT COUNT ( DISTINCT t3.paperid ) FROM paperkeyphrase AS t2 JOIN keyphrase AS t1 ON t2.keyphraseid  =  t1.keyphraseid JOIN paper AS t3 ON t3.paperid  =  t2.paperid WHERE t1.keyphrasename  =  "deep learning";
SELECT DISTINCT COUNT ( DISTINCT t3.paperid ) FROM paperkeyphrase AS t2 JOIN keyphrase AS t1 ON t2.keyphraseid  =  t1.keyphraseid JOIN paper AS t3 ON t3.paperid  =  t2.paperid WHERE t1.keyphrasename  =  "deep learning";
[{'COUNT ( DISTINCT t3.paperid )': 0}]