question: OPTIONS:
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Windows 8's stock apps were also updated, a new Bing-based unified search system was added, SkyDrive was given deeper integration with the operating system, and a number of new stock apps, along with a tutorial, were added.
What search engine was added in Windows 8.1?

answer: yes

[Q]: Sentence: It was not until decades later that physicists thought of analyzing the nodes of the Feynman diagrams more closely. Question: What is the name of the antimatter counterpart of electrons? OPTIONS:
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[A]: no

Q: Does "The extreme and stressful climatic conditions give way to the growth of plant species with secondary metabolites important for medicinal purposes." provide a valid answer to "Where are Urtica dioica found?"?
OPTIONS:
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A: no

Problem: Does "Raleigh-Durham International Airport, the region's primary airport and the second-largest in North Carolina, located northwest of downtown Raleigh via Interstate-40 between Raleigh and Durham, serves the city and greater Research Triangle metropolitan region, as well as much of eastern North Carolina." answer the question "Where is Raleigh-Durham International Airport?" OPTIONS:
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A: yes

Does the sentence "It lies mostly between latitudes 11 and 13N (a small area is south of 11), and longitudes 13 and 17W." provide a valid answer to the question "What latitudes does Guinea-Bissau mostly lie between?" OPTIONS:
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A: yes

Does the sentence "Finally, it is possible to generalize any of these concepts by replacing the binary operation with an arbitrary n-ary one (i.e. an operation taking n arguments)." provide a valid answer to the question "What can be replaced to simplify abstract algebra concepts?" OPTIONS:
- yes
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A:
yes