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*

1: See if you can figure out Cheryl 's birthday , the Singapore logic problem that 's got the Internet twisted into knots . 2: The puzzling problem went viral after Singapore television host Kenneth Kong posted it to Facebook . 3: A logic question about  Cheryl 's birthday  goes viral .
1: Cheryl 's birthday , the Singapore logic problem that 's got the Internet twisted into knots 2: The puzzling problem 3: A logic question about `` Cheryl 's birthday

1: ( CNN ) New Zealand police have revealed a threat to contaminate infant formula and other dairy formula with poison , in an apparent attempt to blackmail the government over its pest control policies . 2: The letters said the threat would be made public if the demand was not met . 3: Letters were sent containing contaminated formula and a demand to government .
1: an apparent attempt to blackmail the government over its pest control policies 2: the threat 3: a demand to government

1: The Julie Andrews film , about the von Trapp family and its  problem  governess , Maria , is beloved enough to have spawned audience singalongs . 2: That made it one of the most successful movies of all time at the box office , up there with  Gone With the Wind ,  and it was n't truly surpassed until  The Godfather  came out in 1972 . 3: Film is widely beloved , was one of biggest hits of all time .

1: The Julie Andrews film , about the von Trapp family and its `` problem '' governess , Maria 2: it one of the most successful movies of all time at the box office 3: Film