Q: Does "The first telephone lines were installed in 1882 and electric street lights took the place of the gas operated ones in 1886." provide a valid answer to "When did electric street lights replace the gas operated lights?"?
A: yes

Q: Does "To a large extent, the minority leader's position is a 20th-century innovation." provide a valid answer to "Who is sometimes considered the first funcioning "Minority Leader?""?
A: no

Q: Does "These historians were often inclined to see John's reign, and his signing of Magna Carta in particular, as a positive step in the constitutional development of England, despite the flaws of the king himself." provide a valid answer to "What period in the 19th century were historians more inclined to draw on the judgements of the chroniclers?"?
A: no

Q: Does "Today, nearly all commonly used video compression methods (e.g., those in standards approved by the ITU-T or ISO) apply a discrete cosine transform (DCT) for spatial redundancy reduction." provide a valid answer to "What do all commonly used video compression methods use?"?
A:
yes