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

Number of ACL papers with more than 2 citations
SELECT DISTINCT COUNT(cite.citingpaperid) FROM cite, paper, venue WHERE paper.paperid = cite.citedpaperid AND venue.venueid = paper.venueid AND venue.venuename = 'ACL' GROUP BY cite.citingpaperid HAVING COUNT(DISTINCT cite.citedpaperid) > 2
SELECT DISTINCT COUNT("cite"."citingpaperid") FROM "cite" JOIN "paper" ON "cite"."citedpaperid" = "paper"."paperid" JOIN "venue" ON "paper"."venueid" = "venue"."venueid" AND "venue"."venuename" = 'ACL' GROUP BY "cite"."citingpaperid" HAVING COUNT(DISTINCT "cite"."citedpaperid") > 2