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].

Example Input: Footage of an adorable koala joey under the care of two zookeepers has been released in celebration of her first birthday. Imogen has grown bigger but stayed as cute as ever under the care of Kylie Elliot and Matt Radnidge from Symbio Wildlife Park in Helensburgh, south of Sydney. Video taken during Imogen's first photo shoot at 10 months of age, was released in preparation for her first birthday festivities. Scroll down for video In the clip the joey sits in a baby basket cuddling and latching on to the soft koala toy with her tiny claws. Curious little Imogen is also seen observing her surroundings and eating eucalyptus leaves.New video has been released of Koala joey Imogen in a baby basket in celebration of her first birthdayThe joey was hand-reared by zookeepers after her mother died at Symbio Wildlife Park, south of SydneyKylie Elliot and Matt Radnidge have been taking care of her and another orphan koala joey, Harry, for almost a yearThey have been posting videos and updates online sharing Imogen's journey 
 Question:_ and Harry were born at the Helensburgh park, south of Sydney, earlier this year, but Harry's mother died of leukaemia when he was just 22 weeks old and he did not receive the vital pap - partly digested eucalyptus leaves excreted by mother koalas - he needed to survive.
Example Output: Imogen

Example 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.
Example Output: BPA

Example Input: Tennis bad-boy Nick Kyrgios has hit back at Pat Rafter, after the former Australian Davis Cup captain said the sport should be focusing on young players 'we can be proud of'. 'Another negative comment out of Rafters (sic) mouth. Does this guy ever stop? #everyoneisaworkinprogress,' Kyrgios tweeted on Sunday morning. The comment was quickly deleted. The latest comment from Kyrgios comes after Rafter, the current Tennis Australia Director of Performance, responded to recent criticism from Kyrgios' friend and fellow controversial figure Bernard Tomic. Tomic said he had been 'neglected' by senior Australian officials within the sport. Rafter said Tennis Australia had discontinued its support of the troubled star 'until there is some reconciliation' between the parties, and said he hopes the game can eliminate some of the complacency he believes has been displayed by young players such as Tomic, according to the Sunday Mail.Nick Kyrgios hits back at Pat Rafter over continued 'negative comments'Rafter says he wants to 'take away entitlement' of current young playersRafter was responding to recent criticism from Australian Bernard TomicTomic said he was being 'neglected', in a post-match tirade at Wimbledon 
 Question:'There has been no respect, I think, towards me... it's been very difficult for me the last year or so in the _ group.'
Example Output:
Tennis Australia