Problem: Does "Another energy-related concept is called the Lagrangian, after Joseph-Louis Lagrange." answer the question "Who is the Lagrangian named after?"

A: yes

Problem: Does "The highest peaks of the Western Alps and Eastern Alps, respectively, are Mont Blanc, at 4,810 m (15,780 ft) and Piz Bernina at 4,049 metres (13,284 ft)." answer the question "How tall is the peak of Piz Bernina"

A: yes

Problem: Does "The Canonbury Tavern, Canonbury, was the prototype for Orwell's ideal English pub, The Moon Under Water." answer the question "In what district of London is The Fitzroy Tavern located?"

A:
no