Q: Does "Since most common power sources (batteries, mains) are constant-voltage sources, most LED fixtures must include a power converter, at least a current-limiting resistor." provide a valid answer to "What feature do most LED fixtures need to have?"?
A: yes

Q: Does "The parade is followed by performances on an outdoor stage, culminating in the burning of an urn in which written prayers have been collected from participants and spectators." provide a valid answer to "What time of day is The Procession?"?
A: no

Q: Does "Serbo-Croatian thus generally goes by the ethnic names Serbian, Croatian, Bosnian, and sometimes Montenegrin and Bunjevac." provide a valid answer to "What ethnic names does Serbo-Croatian associate with?"?
A: yes

Q: Does "The Qutub Festival is a cultural event during which performances of musicians and dancers from all over India are showcased at night, with the Qutub Minar as the chosen backdrop of the event." provide a valid answer to "The Spring Festival which is held each year in Delhi is also known by what name?"?
A:
no