Does the sentence "In 2014 Oklahoma City again reached the NBA's Western Conference Finals but eventually lost to the San Antonio Spurs in six games." provide a valid answer to the question "Who did the Thunder lose to in the Western Conference finals?"

A: yes

Does the sentence "" BYU is working to increase the energy efficiency of its buildings by installing various speed drives on all pumps and fans, replacing incandescent lighting with fluorescent lighting, retrofitting campus buildings with low-E reflective glass, and upgraded roof insulation to prevent heat loss." provide a valid answer to the question "What is BYU working to increase by installing various speed drives on all pumps and fans?"

A: yes

Does the sentence "Despite all these attempts at innovation, shellac compounds continued to be used for the overwhelming majority of commercial 78 rpm records during the lifetime of the format." provide a valid answer to the question "What was a major downfall of the success of Durium records?"

A: no

Does the sentence "Approval from mainland Chinese authorities was sought, and the chartered flight departed Taipei at 17:00 CST, May 15 and arrived in Chengdu by 20:30 CST." provide a valid answer to the question "What date did the cargo flight leave?"

A:
yes