TASK 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*
PROBLEM: 1: Researchers say Mars may once have had an sea as extensive as Earth 's Atlantic Ocean , and Curiosity has found evidence of ancient streambeds and a lake on the planet . 2:  Conditions near the surface of present-day Mars are hardly favorable for microbial life as we know it ,  he said ,  but the possibility for liquid brines on Mars has wider implications for habitability and geological water-related processes .  3: The finding has  wider implications  for efforts to find evidence of life on Mars , a researcher says .

SOLUTION: 1: Mars 2: Mars 3: Mars

PROBLEM: 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 .

SOLUTION: 1: A second man 2: Alexander E . Blair , 28 , of Topeka 3: Alexander Blair , 28 , of Topeka

PROBLEM: 1: That 's when Salvador told Moonves his son trained at the Hollywood gym owned by Freddie Roach , Pacquiao 's trainer , and that he would put in a good word for Moonves . 2: Salvador helped set up a meeting between Moonves , Roach and himself at Scarpetta in Beverly Hills that he says began with a discussion about the legacy of boxing . 3: Gabriel Salvador set up an initial meeting between a TV exec and Manny Pacquiao 's trainer .

SOLUTION:
1: Salvador 2: Salvador 3: Gabriel Salvador