Problem: Does "They can, however, be used on the east and west sides to provide a degree of summer shading without appreciably affecting winter solar gain." answer the question "What side of a building should trees be planted without greatly affecting solar gain in the winter?"

A: yes

Problem: Does "Several protesters who tried to disrupt the relay were promptly arrested by the police." answer the question "Where did the torch relay finish in Turkey?"

A: no

Problem: Does "The Treaty of Paris stood until 1871, when France was defeated by Prussia in the Franco-Prussian War of 18701871." answer the question "In what war was France defeated by Prussia?"

A:
yes