写一个故事，其中包含三个人物和一个令人意外的结局。
人物1：Tommy，20岁，聪明但懒惰
人物2：Lena，25岁，勤奋认真
人物3：Bill，45岁，高傲自大
故事情节：某一天，Lena需要完成一个重要的项目但自己一个人完成困难重重，于是她请来了Tommy和Bill帮忙。三个人齐心协力，费尽心思才在最后时刻完成了项目。然而，结果出奇的意外，Lena发现Bill在项目中用心不良并偷了她的主意，意图抢功。在事后的分组讨论中，Lena和Tommy大力批判了Bill，最终导致了Bill的离职。结局并没有按照Bill预计的那样发展，因为认真努力的人往往会得到自己应得的回报。
Lena, a hardworking and serious 25-year-old, needed help completing an important project. She enlisted the help of Tommy, a smart but lazy 20-year-old, and Bill, a 45-year-old who was proud and arrogant. The three worked together tirelessly to complete the project just in time. However, to Lena's surprise, she discovered that Bill had used underhanded tactics and stolen her ideas in an attempt to take credit for the project. Lena and Tommy were quick to call out Bill during their group discussion, and he ended up being fired from the job. The unexpected ending proved that hard work and dedication often lead to just rewards.