Problem: Choose the next sentence
(CNN) -- The path that brought U.S. citizen David Coleman Headley to the point of pleading guilty to involvement in two international terrorism plots is complicated and twisted. His life, in many ways, is far from the average American experience, but he's also very much a product of a typical American upbringing. He's an unusual fusion, a product of two worlds, a rare blending of East and West. And because of his unusual background, Headley, experts say, is one of the most unusual and important American-born terrorists. Even his eyes -- one blue and one brown -- reflect the double life he has lived almost since the day he was born.

But then his mother pulled him out of the school and brought him back to

Answer: Philly.


Problem: Choose the next sentence
Madrid, Spain (CNN) -- Spanish authorities have arrested 25 people suspected in a 10 million euro ($13 million) fraud scheme targeting German owners of timeshare vacation property in the Canary Islands, police said Friday. The suspects contacted the timeshare owners, offered lucrative terms to buy their shares and lured the owners into paying what turned out to be non-existent taxes or transfer fees, Spanish national police said in a statement. The timeshare property never actually changed hands, and the suspects vanished, only to surface elsewhere and repeat the alleged scam, police said. With help from the German Embassy in Madrid, investigators identified a web of suspects spread among numerous businesses and locations, mainly on Tenerife Island -- one of the largest of the Canary archipelago of seven islands in the Atlantic Ocean.

They, along with other property owners -- foreigners and

Answer: Spain alike -- have felt the deep economic downturn after Spain's real estate bubble and construction boom collapsed.


Problem: Choose the next sentence
(CNN) -- The latest celebrity Twitter feud erupted Sunday between two heavyweights of the social medium. In one corner: pop superstar Lady Gaga and her nearly 40 million followers. In the other: pop culture blogger Perez Hilton and his 6.1 million Twitter fans. Who won the war of 140 characters? It depends on whom you ask. The feud between the former friends appears to stem from several incidents: Hilton tweeted Thursday that Katy Perry's new single, "Roar," is better than Gaga's latest song, "Applause." On Friday, Gaga, who is in the midst of a comeback following a serious tear to her right hip, cryptically referenced a text from Hilton that appeared to make light of her injury. "Still have the text Perez sent me of me in a wheelchair with the words KARMA written across + Madonna pointing a gun at me," she tweeted.

But Gaga went into Twitter overdrive Sunday, accusing Hilton of stalking her, after one of her followers alerted her that he was at

Answer:
Gaga's apartment building in New York.