Question: What does Sam sell? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Holes Context: This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. (July 2016) (Learn how and when to remove this template message) Teenager Stanley Yelnats IV lives in Texas with his destitute family, who have been cursed with misfortune for centuries. His ancestor Elya broke a promise to fortune teller Madame Zeroni. The family had potential for a greater livelihood until Stanley's great grandfather was robbed by Katherine "Kissin' Kate" Barlow, a schoolteacher-turned-criminal. One day, Stanley is falsely accused of stealing a pair of sneakers and is convicted. He decides to attend Camp Green Lake, a juvenile detention camp, in lieu of serving a jail sentence. He arrives to find that the camp is situated on a dried-up lake. The camp is run by its warden, Louise Walker, her assistant Mr. Sir, and camp counsellor Dr. Kiowa Pendanski. The inmates spend each day digging holes in the lakebed to "build character," and may earn a day off if they find anything interesting or unusual. Stanley is eventually accepted into his tent group and is given the nickname "Caveman" by them. Later, Stanley finds a golden lipstick tube in his hole with the initials "KB" engraved on it. He gives the tube to his group's leader X-Ray, who in turn gets a day off. On Walker's orders, the group enlarges the hole which X-Ray had dug, but they find nothing and eventually resume digging individual holes. Later, after taking responsibility for fellow group member Magnet stealing Mr. Sir's sunflower seeds, Stanley is taken to Walker's house where old wanted posters and newspapers lead him to suspect that "K.B." stands for Kate Barlow. In a series of flashbacks, Camp Green Lake is a flourishing lakeside community in 1888. Kate falls in love with an African American onion seller named Sam, who helps rebuild Kate's schoolhouse. When Charles "Trout" Walker, the town's wealthiest man whose advances are rejected by Kate, becomes jealous of Kate and Sam's...
The answer to this question is:
onions