Q: Does "These terms came to a sudden halt following the Revolutions of 1848 and the Crimean War in 1856, paving the way for German unification in the 1860s." provide a valid answer to "In what decade was German unification?"?
A: yes

Q: Does "The province was overrun by Imperial Russian troops during the Seven Years' War." provide a valid answer to "What military overran much of East Prussia?"?
A: yes

Q: Does "The Intermontane Plateaus come to an end at the Cascade Range and the Sierra Nevada." provide a valid answer to "What is the largest point in the Sierra Nevadas?"?
A: no

Q: Does "" The two spent a miserable winter on Majorca (8 November 1838 to 13 February 1839), where, together with Sand's two children, they had journeyed in the hope of improving the health of Chopin and that of Sand's 15-year-old son Maurice, and also to escape the threats of Sand's former lover Felicien Mallefille." provide a valid answer to "During Sands and Chopin's visit to Majorca who were they fleeing?"?
A:
yes