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:
When a husband and wife fleeing Syria made it all the way from their war-torn country safely to Greece in a life raft - with their beloved kitten in tow - the story went viral. Shortly afterwards, Al Kadri, 26, and his wife Nadia arrived in Germany, where they now live, but Zaytouna the tabby cat was quarantined and amid the chaos and the language barrier, it was unclear whether they could ever get her back. But after fearing that their feline had been put down under stringent immigration regulations, the pair were delighted to be reunited with her a few months later when she was delivered to their door.Al Kadri, 26, and his wife Nadia, arrived in Greece from Syria by seaBrought their kitten Zaytouna with them in a home-made slingUpon arrival at refugee camp in Germany, the cat was quarantinedGovernment official found them and returned Zaytouna by surprise 
 Question:Mr Kadri told Buzzfeed: '[A government worker] told me in most cases when people bring their pets from Syria they just kill the animal,' yet it was that same worker who surprised the couple months later by bringing _ back to them.

Ex Output:
Zaytouna


Ex Input:
(CNN) Your "BPA-free" plastic product may be no safer than the product it replaced, says a new UCLA study that analyzed the impact of a common BPA alternative on zebra fish embryos. The study joins a small but growing group of similar research sounding the alarm about so called "BPA-free" alternatives. "Our findings are frightening and important," said senior author and reproductive endocrinologist Nancy Wayne. "Consider it the aquatic version of the canary in the coal mine." After decades of animal research linked BPA (Bisphenol A), a known endocrine disruptor, to problems with brain and reproductive development, early puberty and a rise in breast and prostate cancer, many manufacturers stopped using the chemical to harden plastics, replacing it with "BPA-free" alternatives. The most common replacement is BPS (Bisphenol S), said Wayne.BPA-free alternatives may be no safer than BPA, say researchersMost common alternative, BPS, linked in study to disruptions of estrogen and thyroid hormones 
 Question:In addition to the effect on estrogen, the study also found both _ and BPS affected the thyroid hormone system.

Ex Output:
BPA


Ex Input:
John Sutton Jr has spent the first Saturday of May the same way since he was 8 years old - on the sidelines of the Kentucky Derby. To commemorate his dedication to horse racing, Churchill Downs - the track that hosts the race every year - is inviting the 84-year-old man to attend his 76th-straight Kentucky Derby as their special guest on May 2. This week, Sutton invited a reporter from WAVE 3 into the Louisville home he shares with his wife of 61 years Doris, where she spoke about his very first Derby and showed off his impressive collection of racing memorabilia.John Sutton Jr was just 8 years old in 1940, when his blacksmith father took him to his first Kentucky DerbyThe 84-year-old Louisville native hasn't missed a race since, and has amassed an impressive collection of memorabilia over the past 76 racesChurchill Downs, the racing grounds that hosts the competition, has invited Sutton to watch the event for free as a special guest on May 2 
 Question:Through the years: The _ programs got more and more colorful over the years.

Ex Output:

Kentucky Derby