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: Under the Federal Government's recently announced budget, changes to the way women are screened for cervical cancer could spell the end of pap smears in Australia and a decrease in diagnosis. Under the previous healthcare system, women between 25 and 74 were encouraged to undergo an often-dreaded pap smear every two years - but under the new budget, a HPV screening test is set to replace it and would only be required every five years. 'Cervical screening has already been very effective in Australia and with the introduction of the HPV vaccine and now this new test, we are getting even better at preventing cancer and providing treatment earlier,' said pathologist, Dr Penny Yarrow.The Federal government announced the National Cervical Screening Program under it's recently proposed budgetThe program would see the bi-annual pap smear to test for cervical cancer replaced with a test for HPV every five yearsHealthcare authorities believe the test, combined with vaccinations, could reduce cervical cancer by 15%Only 58% of women between 25 and 74 are tested regularly for the caner-causing virus80% of women with cervical cancer are not being screened at all 
 Question:Identifying _ tells doctors if a woman is at higher risk of cervical cancer before abnormal cells appear.
Example Output: HPV

Example Input: Washington (CNN) North Korea might not be able to reach the U.S. mainland with a nuclear weapon yet, but the political fallout from its claimed hydrogen bomb test is here already. Even before the shockwaves of the 5.1 temblor triggered by Tuesday's test wore off, Hillary Clinton was fighting off a volley of Republican attacks, GOP presidential candidates were talking tough and Donald Trump jumped on a chance to chastise China. The episode was a fresh indication of the challenge that Clinton faces in running for the White House on her record as secretary of state, which makes it impossible for her to escape deficiencies in President Barack Obama's national security legacy.The episode is a fresh indication of the challenge that Clinton faces in running for the White House on her record as secretary of stateWashington has tried punishment and inducements repeatedly with North Korea and has failed to change its calculations 
 Question:He then toughened his stance by including _ in his "axis of evil."
Example Output: North Korea

Example Input: (WIRED) -- Google's netbook-friendly Chrome OS takes direct aim at Microsoft, whose eight-year-old Windows XP leads the netbook market. But the odds are stacked against Google. Despite its buzz, the odds are stacked against Google's Chrome OS becoming a serious rival to Windows. In competing with Windows, Google Chrome OS will have to deal with many of the same challenges Linux has: compatibility, usability, and unfamiliarity. The record isn't good: In the past year, Linux-based netbooks have rapidly lost market share to Microsoft, as people find that Linux doesn't work as expected, may not support the applications or peripherals they're used to using, and is just plain different.The odds are stacked against Google's new operating system as a rival to WindowsChrome OS must face the same challenges as Linux: compatibility and unfamiliarityA big stumbling block for Google will be whether its system supports iTunesGoogle must work with PC makers to ensure netbooks are pre-loaded with Chrome 
 Question:Here's what Google needs to figure out to make _ a success.
Example Output:
Chrome OS