[Q]: Singularity is an experimental operating system (OS) which was built by Microsoft Research between 2003 and 2010. It was designed as a high dependability OS in which the kernel, device drivers, and application software were all written in managed code. Internal security uses type safety instead of hardware memory protection. Microsoft Research made many revisions to Singularity when it was being built.
[A]: It's impossible to say

[Q]: 2 seriously wounded in Grand Crossing shooting Two men were seriously wounded in a shooting Thursday evening in the Grand Crossing neighborhood on the South Side. The men ages 28 and 39 were shot at by someone inside a vehicle that pulled up to them at 6:11 p.m. in the 7300 block of South Dante, Chicago Police said. The older man was shot in his face and taken to Northwestern Memorial Hospital in serious condition, police said. The younger man took himself to Jackson Park Hospital with a gunshot wound to his shoulder in serious condition. The two men were shot in their legs.
[A]: No

[Q]: Regretful Post<br>Tom was drunk. He decided to get on Facebook. He posted a lot of regretful things. The next day he woke up to a lot of complaints. Tom had to delete and apologize. Tom had to apologize to at least fifteen people.
[A]: It's impossible to say

[Q]: Vladimir Oiunovich Oidupaa (Russian: , Tuvan: , "Oidupaa Vladimir Oiun oglu" ] , 6 September 1949 25 September 2013) was a Tuvan musician, who performed Kargyraa and played bayan. He is considered one of the leading figures in the contemporary Tuvan music. Vladimir Oiunovich Oidupaa was a leading figure in Tuvan music
[A]:
Yes