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";