instruction:
In this task, you will be shown a passage. You need to write a fill-in-the-gap question based on your understanding of the events that might be inferred from the passage. Your question should be answerable based on the passage and only have one correct answer. Show the gap in your question with a _ .
question:
Adam Federici will put his Wembley blunder behind him when Reading take on Birmingham in the Sky Bet Championship, according to manager Steve Clarke. The Australian goalkeeper let a tame Alexis Sanchez shot slip through his grasp in the sixth minute of extra-time as the Royals were narrowly beaten 2-1 by Arsenal in Saturday's FA Cup semi-final. It was a cruel blow for Federici, who had kept the Gunners at bay with a string of fine saves, but Reading boss Clarke is confident the 30-year-old will bounce back. Adam Federici fails to Alexis Sanchez's shot from crossing the line at Wembley on Saturday eveningAdam Federici allowed Alexis Sanchez's shot to squirm through his legsHis error meant Arsenal advanced to the FA Cup final after extra-timeReading boss Steve Clarke has backed his goalkeeper to get back on trackThe Royals face Birmingham in the Championship on Wednesday night
answer:
'On Wednesday night when we play Birmingham, he'll be typical _ - one of our best players.'


question:
(CNN) -- X-ray data from NASA's MESSENGER probe points to high levels of magnesium and sulfur on the surface of the planet Mercury, suggesting its makeup is far different from that of other planets, scientists say. The unmanned orbiter has been beaming back data from the first planet for a year and a half. Readings from its X-ray spectrometer point to a planet whose northern volcanic plains formed through upwellings of rocks more exotic than those often found on the Earth, the Moon or Mars, said Shoshana Weider, a researcher at the Carnegie Institution of Washington. "Before this MESSENGER mission, a lot of people assumed it was very like the Moon -- it's dark, it's grey," Weider said. But while the Moon's surface formed when light materials floated to the top of an ocean of molten rock, the low level of calcium on Mercury indicates that didn't happen there.NASA probe gives insight into Mercury's formationThe surface has sulfur levels 10 times higher than Earth'sThe MESSENGER orbiter has been circling Mercury since March 2011
answer:
It's about 5% the size of _ and revolves around the sun every 88 days.


question:
Thousands of commuters were left stranded at Waterloo station this afternoon after an earlier incident in which a person was struck by a train scuppered the entire day's services. Frustrated passengers packed the concourse this afternoon as services in and out of the city centre were delayed or cancelled. The chaos ensued after Network Rail was forced to close a section of the tracks between Wimbledon and Surbiton when a person was struck by a train. Scroll down for video Thousands of commuters were left stranded at Waterloo station during rush hour after a part closure of the track between Surbiton and WimbledonThousands were left stranded at central London station during rush hourCrucial section of track between Wimbledon and Surbiton was closedSouth West trains warned passengers of cancellations on all servicesNetwork Rail said staff were working 'flat out' to fix the situation
answer:

At 9pm delays of up to 30 minutes were still being experienced on _.