Does the sentence "The Islamic Golden Age coincided with the Middle Ages in the Muslim world, starting with the rise of Islam and establishment of the first Islamic state in 622." provide a valid answer to the question "What other age occurred at the same time as the Islamic Golden Age?"

A: yes

Does the sentence "Catalan bears varying degrees of similarity to the linguistic varieties subsumed under the cover term Occitan language (see also differences between Occitan and Catalan and Gallo-Romance languages)." provide a valid answer to the question "What are the degrees of similarity with Occitan and Gallo-Romance languages?"

A: yes

Does the sentence "Unusually almost all represent Saint Demetrius of Thessaloniki, often with suppliants before him." provide a valid answer to the question "The mosaic in the church in Thessaloniki is know as what?"

A: no

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?"

A:
yes