Problem: Provided some additional requirements are met (e.g. providing an authoritative statement of the archivist), the United States patent office and the European Patent Office will accept date stamps from the Internet Archive as evidence of when a given Web page was accessible to the public. These dates are used to determine if a Web page is available as prior art for instance in examining a patent application.
What does the patent offices require before they accept applications for employment?
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Answer: unanswerable

Problem: From the late-1980s onwards, the party adopted free market policies, leading many observers to describe the Labour Party as social democratic or the Third Way, rather than democratic socialist. Other commentators go further and argue that traditional social democratic parties across Europe, including the British Labour Party, have been so deeply transformed in recent years that it is no longer possible to describe them ideologically as 'social democratic', and claim that this ideological shift has put new strains on the party's traditional relationship with the trade unions.
When have social democratic parties in America been transformed?
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Answer: unanswerable

Problem: The majority of studies indicate antibiotics do interfere with contraceptive pills, such as clinical studies that suggest the failure rate of contraceptive pills caused by antibiotics is very low (about 1%). In cases where antibacterials have been suggested to affect the efficiency of birth control pills, such as for the broad-spectrum antibacterial rifampicin, these cases may be due to an increase in the activities of hepatic liver enzymes' causing increased breakdown of the pill's active ingredients. Effects on the intestinal flora, which might result in reduced absorption of estrogens in the colon, have also been suggested, but such suggestions have been inconclusive and controversial. Clinicians have recommended that extra contraceptive measures be applied during therapies using antibacterials that are suspected to interact with oral contraceptives.
What is birth control failure rate due to antibiotics?
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Answer:
about 1%