Definition: You will be given three sentences. Read them, then identify a noun phrase (person, place, or thing) or event that is shared between all three sentences. As the output, write the span of the text corresponding to that phrase in each sentence. Keep the order of the sentences, that is, your answer should look like: 1: *a phras from sentence 1e* 2: *a phras from sentence 2* 3: *a phrase from sentence 3*
Input: 1: It was put on temporary display at the department store . 2: The robotic polygot could prove useful serving foreign customers during the 2020 Tokyo Olympics . 3: Toshiba tests robotic greeter at upscale Tokyo department store .

1: It 2: The robotic polygot 3: robotic greeter