In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

Ex Input:
A British national held hostage in Yemen has been freed in a 'military intelligence' operation, according to Foreign Secretary Philip Hammond. The Briton, who has been identified as Robert Douglas Semple, 64, was released by United Arab Emirates forces. The freed hostage had been working as a petroleum engineer in the Yemeni province of Hadramawt when he was kidnapped in February 2014. The UAE forces were based in Yemen's main port city of Aden, according to the state news agency WAM. The Yemeni agency reported that he had been held by al-Qaeda for 18 months. Mr Semple was taken to the Yemeni port city of Aden before being flown to Abu Dhabi by military plane on Saturday night, it added.Hostage identified as petroleum engineer Robert DouglasSemple, 64He was abducted in February 2014 while working in Hadramawt provinceForeign Secretary Philip Hammond made the announcement from TehranAbductions are common in Yemen, plagued by tribesmen and Al-Qaeda militants 
 Question:Abductions are frequent as armed tribesmen and al-_-linked militants take hostages in the hope of swapping them for prisoners or cash.

Ex Output:
Qaeda


Ex Input:
The wife of a man jailed for killing his own brother has vowed to stand by her man. Mark Lowe, 32, from Skelmersdale, Lancashire, is currently serving a five-year sentence for beating and kicking his brother Wayne to death, after Wayne, then 33, attacked him in his bed with a knife. Mark's wife Sarah is now looking after three young children alone and said: '[Mark] will regret what he did for the rest of his life, because he loved his brother.' Mark Lowe, 32 (left), is currently serving a five year sentence for beating and kicking his brother Wayne (right) to death, but his wife Sarah (bottom) is standing by her manMark Lowe, 32, beat his brother Wayne, 33, to death last SeptemberWayne, who was known for being violent, attacked Mark in bed with a knifeMum-of-three Sarah Lowe insists her husband, a nurse, is a good manMark is now serving a four year eight month prison sentence 
 Question:'_ had never been in trouble before in his life, so to be sent away on remand was horrific for him.

Ex Output:
Mark Lowe


Ex Input:
Washington (CNN) Former presidential candidate Ben Carson disagrees with the plan to put Harriet Tubman on the $20 bill, and on Wednesday suggested another note for her: the $2 bill. "I love Harriet Tubman," the former GOP White House hopeful told Fox Business Network's Neil Cavuto. "I love what she did, but we can find another way to honor her. Maybe a $2 bill." Tubman, the African-American suffragist and abolitionist who brought slaves to safety on the Underground Railroad, will begin appearing on a forthcoming version of the $20 bill, bumping former President Andrew Jackson to the back, Treasury Secretary Jack Lew announced Wednesday.Carson insisted he had nothing against Tubman"I love what she did, but we can find another way to honor her," Carson said 
 Question:RELATED: _'s move to the $20 has fans rejoicing.

Ex Output:

Harriet Tubman