Q: Does "Liquid H2 is used in cryogenic research, including superconductivity studies." provide a valid answer to "What research uses liquid H2?"?
A: yes

Q: Does "Thermal mass systems can store solar energy in the form of heat at domestically useful temperatures for daily or interseasonal durations." provide a valid answer to "What is the system called that can store solar energy in the form of heat?"?
A: yes

Q: Does "Eton also runs a number of choral and English language courses during the summer months." provide a valid answer to "What are some courses Eton offers in the summer months?"?
A: yes

Q: Does "However, according to then-Secretary of State Colin Powell, the UNFPA contributed vehicles and computers to the Chinese to carry out their population control policies." provide a valid answer to "What policies did a State Department official accuse UNFPA of helping China carry out?"?
A:
yes