The clusters in the test set:
{N1090 courage, determination, perseverance}
{N110 Yasser Abed Rabbo, Nabil Shaath, Hassan Asfour}
{N1100 Feb. 1., Feb 22, March 7.}
{N1110 New South Wales, Queensland, Western Australia}
{N1120 Mario Elie, Jaren Jackson, Avery Johnson}
{N1130 master's degree, bachelor's degree, doctorate}
{N1140 dugout, locker room, bench}
{N1150 mountain climbing, skateboarding, sledding}
{N1160 rightfield, leftfield, upper deck}
{N1170 Josef Stalin, Idi Amin, Nicolae Ceausescu}
{N1180 Los Angeles Police Department, LAPD, New York Police Department}
{N1190 Straits Times Index, Weighted Price Index, Industrial Index}
{N120 Shaquille O'Neal, O'Neal, David Robinson}
{N1200 Robin Yount, George Brett, Orlando Cepeda}
{N1210 notion, concept, idea}
{N1220 bikini, panty, underwear}
{N1230 east side, west side, Upper East Side}
{N1240 West Texas, South Texas, Central Texas}
{N1250 NTV, ORT, NHK}
{N1260 grassland, wetlands, forest}
{N1270 dissension, discord, disharmony}
{N1280 hibernation, stupor, slumber}
{N1290 Eighth Avenue, Lexington Avenue, Seventh Avenue}
{N130 impact, effect, danger}
{N1300 detail, information, content}
{N1310 tractor trailer, semitrailer, school bus}
{N1320 privatisation, divestiture, reorganization}
{N1330 Fulton County, Travis County, Harris County}
{N1340 dependence, reliance, dependency}
{N1350 din, noise, roar}
{N1360 fresco, wall painting, Mural}
{N1370 cattle ranch, dairy farm, plantation}
{N1380 Junction, intersection, juncture}
{N1390 middle finger, ring finger, index finger}
{N140 ACCORD, AGREEMENT, pact}
{N1400 sewer system, sewer, sewer line}
{N1410 shamble, tatter, shambles}
{N1420 Lazaro Gonzalez, great-uncle, Marisleysis Gonzalez}
{N1430 No. 11, No. 9, No. 7}
{N150 law, regulation, legislation}
{N160 appeals court, court of appeals, U.S. Supreme Court}
{N170 sq.m, M., cu.m}
{N180 spoonful, Dollop, scoop}
{N190 one tenth, One fifth, one-fifth}
{N20 kg, kilogram, ton}
{N200 LOW, highest level, HIGH}
{N210 highest, largest, biggest}
{N220 turnabout, turnaround, reversal}
{N230 fulfilment, fulfillment, realization}
{N240 drug use, behavior, sex}
{N250 kind, type, sort}
{N260 minister, ambassador, foreign minister}
{N270 ITALY, France, AUSTRALIA}
{N280 IAAF, FINA, International Amateur Athletic Federation}
{N290 liar, bigot, Traitor}
{N30 tone, Style, attitude}
{N300 plaudit, accolade, kudos}
{N310 achievement, progress, success}
{N320 computer science, anthropology, sociology}
{N330 Hubbell, McDougal, Cisneros}
{N340 pesticide, chemical, toxin}
{N350 G-15, SAARC, Rio Group}
{N360 HOME, House, bungalow}
{N370 opera, musical, cabaret}
{N380 guitarist, arranger, vocalist}
{N390 U.S. Open, Australian Open, French Open}
{N40 National League, NL, American League}
{N400 faith, religion, belief}
{N410 Mazar-i-Sharif, Mazar-e-Sharif, Jaffna}
{N420 telephone number, phone number, Social Security number}
{N430 varnish, enamel, sealer}
{N440 stockholder, shareholder, creditor}
{N450 proof, indication, evidence}
{N460 EPO, erythropoietin, human growth hormone}
{N470 Gainer, decliner, advancer}
{N480 hiking, snorkeling, boating}
{N490 working group, committee, task force}
{N50 ECA, ESCAP, IPU}
{N500 Dasa, Aerospatiale Matra, AEROSPATIALE}
{N510 indiscretion, misbehavior, misdeed}
{N520 middle class, wealthy, affluent}
{N530 most valuable player, MVP, rookie}
{N540 third period, second period, first period}
{N550 whisky, whiskey, cognac}
{N560 worshipper, worshiper, parishioner}
{N570 Agricultural Bank of China, China Construction Bank, Industrial and Commercial Bank of China}
{N580 Swan Lake, Giselle, sleeping beauty}
{N590 Parcells, Belichick, Holmgren}
{N60 mother, FATHER, wife}
{N600 ballistic missile, missile, warhead}
{N610 Carter Holt Harvey, Fletcher Paper, Fletcher Energy}
{N620 taxiway, tarmac, landing strip}
{N630 vessel, SHIP, tanker}
{N640 Akili Smith, Tim Couch, Daunte Culpepper}
{N650 fifth, sixth, fourth}
{N660 equanimity, good humor, humility}
{N670 car horn, Siren, horn}
{N680 Mitch, GEORGES, Hurricane Georges}
{N690 apartment building, condominium, apartment}
{N70 Ruben Patterson, Rashard Lewis, Vladimir Stepania}