给定一个英文文章，返回其中最长的单词 
A little boy went into a drug store, reached for a soda carton and pulled it over to the telephone. He climbed onto the carton so that he could reach the buttons on the phone and proceeded to punch in seven digits. The store-owner observed and listened to the conversation: 
Boy: ‘Lady, Can you give me the job of cutting your lawn?’ 
Woman: (at the other end of the phone line) ‘I already have someone to cut my lawn.’ 
Boy: ‘Lady, I will cut your lawn for half the price of the person who cuts your lawn now.’ 
Woman: I’m very satisfied with the person who is presently cutting my lawn.’ 
Boy: (with more perseverance) ‘Lady, I’ll even sweep your curb and your sidewalk, so on Sunday you will have the prettiest lawn in all of Palm beach, Florida.’ 
Woman: No, thank you. 
With a smile on his face, the little boy replaced the receiver. The store-owner, who was listening to all this, walked over to the boy. 
Store Owner: ‘Son… I like your attitude; I like that positive spirit and would like to offer you a job.’ 
Boy: ‘No thanks, I was just checking my performance at the job I already have. I am the one who is working for that lady I was talking to!’
"performance" is the longest word in the given article with 11 characters.