gistfile1.java

def improve(image: Image, desc: String) = for {
  page = generateImprovementPage(image,desc);
  improvement <- runHits(page)
} yield improvement;

def vote(improvement: Improvement) = for {
  page = generateVotingPage(improvement);
  v <- runHits(page);
} yield v;

var descs = initialPages(...);
while(!consensus) {
  descs = for( (image,desc) <- descs;
               improvement <- improve(image,desc);
               v <- vote(improvement);
             ) yield parseVotes;
}