ex. 竹中平蔵 + 村井純 http://labs.google.com/sets?hl=en&btn=Large+Set&q1=%E6%9D%91%E4%BA%95%E7%B4%94&q2=%E7%AB%B9%E4%B8%AD%E5%B9%B3%E8%94%B5 seems precision is better than SEAL.

solution: http://oshiete1.goo.ne.jp/kotaeru.php3?q=2731181