sentences:  Realizing that her sister actually had a chance at receiving a red yếm and the day is almost done, Cám comes up with a plan to sabotage Tam's work.Cam tells her older sister to wash her hair, saying that the stepmother will scold her if her hair is so muddy after catching all the caridinas, and Tam obeys.While Tam is washing her hair, Cam transfers all the shrimp from Tam's basket to hers and goes home.