CREATE TABLE paperdataset (paperid INT, datasetid INT)
CREATE TABLE keyphrase (keyphraseid INT, keyphrasename VARCHAR)
CREATE TABLE cite (citingpaperid INT, citedpaperid INT)
CREATE TABLE field (fieldid INT)
CREATE TABLE writes (paperid INT, authorid INT)
CREATE TABLE paper (paperid INT, title VARCHAR, venueid INT, year INT, numciting INT, numcitedby INT, journalid INT)
CREATE TABLE journal (journalid INT, journalname VARCHAR)
CREATE TABLE author (authorid INT, authorname VARCHAR)
CREATE TABLE dataset (datasetid INT, datasetname VARCHAR)
CREATE TABLE venue (venueid INT, venuename VARCHAR)
CREATE TABLE paperkeyphrase (paperid INT, keyphraseid INT)
CREATE TABLE paperfield (fieldid INT, paperid INT)

What is the latest Semantic Parsing paper from Nabil Aouf 's group ?
SELECT DISTINCT paper.year, writes.paperid FROM author, keyphrase, paper, paperkeyphrase, writes WHERE author.authorname = 'Nabil Aouf' AND keyphrase.keyphrasename = 'Semantic Parsing' AND paperkeyphrase.keyphraseid = keyphrase.keyphraseid AND writes.paperid = paperkeyphrase.paperid AND writes.paperid = paper.paperid ORDER BY paper.year DESC
SELECT DISTINCT "paper"."year", "writes"."paperid" FROM "author" JOIN "keyphrase" ON "keyphrase"."keyphrasename" = 'Semantic Parsing' JOIN "paperkeyphrase" ON "keyphrase"."keyphraseid" = "paperkeyphrase"."keyphraseid" JOIN "writes" ON "paperkeyphrase"."paperid" = "writes"."paperid" JOIN "paper" ON "paper"."paperid" = "writes"."paperid" WHERE "author"."authorname" = 'Nabil Aouf' ORDER BY "paper"."year" DESC NULLS LAST