Two men are walking in the park. One is Mr. Brown, a worker, the other is Mr. Black. Mr. Brown is going to a chair. It is next to the road. Mr. Black is in front of him. Mr. Black finds Mr. Brown. Then Mr. Black begins to walk faster (更快的), because he wants to get to the chair before Mr. Brown. Now Mr. Brown begins to walk faster because he also wants to get to the chair first. Then they both run. Mr. Black runs faster than Mr. Brown. So he gets to the chair first and sits down on it. Mr. Brown runs after Mr. Black. When he gets to the chair, he sees Mr. Black sitting on it. He is sorry to show a notice (告示) with the words "Wet Paint" to Mr. Black. Now Mr. Black knows why Mr. Brown is going to the chair.