Q: Does "In April, during the Revolution of 1848 in Paris, he left for London, where he performed at several concerts and at numerous receptions in great houses." provide a valid answer to "Where did Chopin go in the spring of 1848?"?
A: yes

Q: Does "It is so named because it set the standards by which Greek civilization would be judged in later eras." provide a valid answer to "The time span that is counted as the classical for the Greeks is from eras ?"?
A: no

Q: Does "Unicode has the explicit aim of transcending the limitations of traditional character encodings, such as those defined by the ISO 8859 standard, which find wide usage in various countries of the world but remain largely incompatible with each other." provide a valid answer to "What is the major limitation of traditional character encodings?"?
A: yes

Q: Does "This had the effect of stimulating a shift in construction from drystone and other related materials to coral stone, sundried bricks, and the widespread use of limestone in Somali architecture." provide a valid answer to "In the medieval period, what buildings were notably built atop older ruins?"?
A:
no