Does the sentence "He spent eleven months from early February 1943 designing and building the first Colossus." provide a valid answer to the question "Who built the first Colossus in 1943?" OPTIONS:
- yes
- no

A: no

Does the sentence "i les Ciencies), which contains an opera house/performing arts centre, a science museum, an IMAX cinema/planetarium, an oceanographic park and other structures such as a long covered walkway and restaurants." provide a valid answer to the question "Who designed the City of Arts and Sciences?" OPTIONS:
- yes
- no

A: no

Does the sentence "Hard rock had been established as a mainstream genre by 1965." provide a valid answer to the question "As of what year was hard rock a mainstream type of music?" OPTIONS:
- yes
- no

A: yes

Does the sentence "H2 is used as the rotor coolant in electrical generators at power stations, because it has the highest thermal conductivity of any gas." provide a valid answer to the question "How is H2 used in electrical generators at power stations?" OPTIONS:
- yes
- no

A:
yes