Generate a question that has the following answer: A pearl for the following movie plot: Sherlock Jr. starts with a proverb: "Don't try to do two things at once and expect to do justice to both." The projectionist/Sherlock Jr. (Buster Keaton) sits at the back of an empty movie theater with his broom, reading "How to Be a Detective." He has the required equipment: a moustache disguise and a magnifying glass. He is chided by his boss to complete his chores first. So he begins to work, but not before day-dreaming about his love interest, The Girl (Kathryn McGuire). Before sweeping the mess in front of the theater, the projectionist walks to the confectionery next door. There is a box of candies that costs a dollar, and a bigger one that costs three dollars. He only has two dollars. Shrugging, he returns to his work.In front of the theater, a particularly sticky piece of paper sticks to his broom. As he tries to shake it off, he steps on the paper. He tries to shake the paper loose of his foot, but no luck - he grabs it. The paper sticks to his hands, etc. He hears his boss leaving, so he holds the paper on the floor, until his boss steps on it, and relieves him of the problem. We are then introduced to the local Sheik (Ward Crane) - the town shyster. He glances at the candy, but has no money. In the trash pile, the projectionist finds a dollar. He puts on his coat, ready to purchase the three dollar box of candy, until a young woman arrives, searching through the trash for a dollar she lost. The projectionist gives her back the dollar. As he begins to put away his jacket, an elderly woman begins digging through the trash - she has lost a dollar also. The projectionist generously gives her one of his dollars. Finally a hairy giant arrives on the scene. The projectionist offers him a dollar immediately. The giant refuses and begins to dig through the trash, spotting a wallet with a wad of cash. Shrugging, the projectionist takes the crumpled dollar to buy the box of candy.As he walks to the girl's house. He uses a pencil to change the price tag on the box of candy from one dollar to four. He is...
A:
What kind of necklace was stolen in the movie?