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*

Ex Input:
1: It may help scientists better understand why Yellowstone 's previous eruptions , in prehistoric times , were some of Earth 's largest explosions in the last few million years . 2: Volcanic activity triggers 2,000 to 3,000 small earthquakes per year , and the shake and shock waves travel at different speeds through molten , hot and other rock . 3: Scientist measured the thousands of small earthquakes in Yellowstone to scan the earth underneath it .

Ex Output:
1: Yellowstone 's previous eruptions 2: 2,000 to 3,000 small earthquakes per year 3: small earthquakes in Yellowstone


Ex Input:
1: Through an emission of sound waves , sensations are projected through the air and to the user . 2: What you 're feeling , what sort of pressure , the tactile sensation given by an object or surface . 3: A tactile sensation is provided by ultrasonic waves , which alter air pressure .

Ex Output:
1: sensations 2: the tactile sensation given by an object or surface 3: A tactile sensation


Ex Input:
1: The fight for voting rights was just beginning . 2: One thing  not right  on the 50th anniversary of the Selma marches is the sad fact that the Edmund Pettus Bridge has n't been renamed the John Lewis Bridge . 3: Douglas Brinkley : Site where voting rights battle was fought should be named for John Lewis .

Ex Output:

1: The fight for voting rights 2: the Selma marches 3: voting rights battle


