Problem: Does "The first, on 2 April 1833, was at a benefit concert organized by Hector Berlioz for his bankrupt Shakespearean actress wife Harriet Smithson, during which they played George Onslow's Sonata in F minor for piano duet." answer the question "When was the first time Liszt and Chopin performed together?"

A: yes

Problem: Does "Japan remained the only country with successful public broadcasting of analog HDTV, with seven broadcasters sharing a single channel." answer the question "What was particularly challenging in the early years of HDTV?"

A: no

Problem: Does "Until that time beer establishments used to bring the beer out to the table or benches, as remains the practice in (for example) beer gardens and other drinking establishments in Germany." answer the question "In Germany, what do servers do to serve beer in beer gardens?"

A:
yes