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 Q]: 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 A]: 1: sensations 2: the tactile sensation given by an object or surface 3: A tactile sensation

[EX Q]: 1: A second man , who allegedly knew about the bomb plot but did n't call authorities , was charged with failing to report a felony . 2: Alexander E . Blair , 28 , of Topeka was taken into custody Friday and charged with failing to report a felony . 3: Alexander Blair , 28 , of Topeka accused of knowing about bomb plot but not contacting authorities .
[EX A]: 1: A second man 2: Alexander E . Blair , 28 , of Topeka 3: Alexander Blair , 28 , of Topeka

[EX Q]: 1: The country joined several of its South American neighbors in allowing the unions when President Michelle Bachelet enacted a new law on Monday . 2: The new law will take effect in six months . 3: President Michelle Bachelet signs law that will take effect in six months .
[EX A]:
1: a new law 2: The new law 3: law that will take effect in six months