question:
Opera as a staged musical drama began to differentiate itself from earlier musical and dramatic forms, and vocal forms like the cantata and oratorio became more common.
Opera began to differentiate itself from earlier forms as what?

answer: yes

question:
The intent of the new Western Electric system was to improve the overall quality of disc recording and playback.
What was the Western Electric System believed to do?

answer: yes

question:
Somalis constitute the largest ethnic group in Somalia, at approximately 85% of the nation's inhabitants.
What percentage of Somalians are ethnic Somalis?

answer: yes

question:
Although similar in theoretical maximum transfer rate, FireWire 400 is faster than USB 2.0 Hi-Bandwidth in real-use, especially in high-bandwidth use such as external hard-drives.
FireWire 400 is faster than what?

answer:
yes