Database: scholar
Question: what were some Parsing based papers in acl 2012 ?
SQL:
SELECT 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 JOIN venue AS t4 ON t4.venueid  =  t3.venueid WHERE t1.keyphrasename  =  "Parsing" AND t3.year  =  2012 AND t4.venuename  =  "acl";