Database: scholar_minus_1_0
Question: papers on Parsing appeared at acl last year
SQL: select distinct t2.paperid from paperkeyphrase_keyphrase as t1 join paper as t2 on t1.paperid = t2.paperid join venue as t3 on t2.venueid = t3.venueid where t1.keyphrasename = 'parsing' and t2.year = 2012 and t3.venuename = 'acl' ;