[Q]: Sentence: In 1978, Van Halen emerged from the Los Angeles music scene with a sound based around the skills of lead guitarist Eddie Van Halen. Question: Which Van Halen instrumental showcased the guitar mastery of Eddie Van Halen?
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[A]: no

[Q]: Sentence: members of al-Qaeda's Hamburg cell intentionally crashed two airliners into the Twin Towers of the World Trade Center in New York City. Question: Which al-Qaeda cell were the 9/11 hijackers members of?
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[A]: yes

[Q]: Sentence: Used even by Apple for A/UX and MkLinux, this technique is no longer necessary since the introduction of Open Firmware-based PCI Macs, though it was formerly used for convenience on many Old World ROM systems due to bugs in the firmware implementation.[citation needed] Question: What was introduced that made using Mac OS alternative operating systems easier?
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[A]:
yes