CREATE TABLE paperfield (fieldid NUMBER, paperid NUMBER)
CREATE TABLE writes (paperid NUMBER, authorid NUMBER)
CREATE TABLE paperkeyphrase (paperid NUMBER, keyphraseid NUMBER)
CREATE TABLE journal (journalid NUMBER, journalname VARCHAR2)
CREATE TABLE dataset (datasetid NUMBER, datasetname VARCHAR2)
CREATE TABLE venue (venueid NUMBER, venuename VARCHAR2)
CREATE TABLE paperdataset (paperid NUMBER, datasetid NUMBER)
CREATE TABLE author (authorid NUMBER, authorname VARCHAR2)
CREATE TABLE keyphrase (keyphraseid NUMBER, keyphrasename VARCHAR2)
CREATE TABLE cite (citingpaperid NUMBER, citedpaperid NUMBER)
CREATE TABLE paper (paperid NUMBER, title VARCHAR2, venueid NUMBER, year NUMBER, numciting NUMBER, numcitedby NUMBER, journalid NUMBER)
CREATE TABLE field (fieldid NUMBER)

Does luke zettlemoyer have a paper in siggraph in 2016 ?
SELECT DISTINCT paper.paperid FROM author, paper, venue, writes WHERE author.authorname = 'luke zettlemoyer' AND paper.year = 2016 AND venue.venueid = paper.venueid AND venue.venuename = 'siggraph' AND writes.authorid = author.authorid AND writes.paperid = paper.paperid
SELECT DISTINCT "paper"."paperid" FROM "author" JOIN "writes" ON "author"."authorid" = "writes"."authorid" JOIN "paper" ON "paper"."paperid" = "writes"."paperid" AND "paper"."year" = 2016 JOIN "venue" ON "paper"."venueid" = "venue"."venueid" AND "venue"."venuename" = 'siggraph' WHERE "author"."authorname" = 'luke zettlemoyer'