Does the sentence "The weight of the counterweight is typically equal to the weight of the elevator cab plus 40-50% of the capacity of the elevator." provide a valid answer to the question "The counterweight runs equal to the cab weight plus what percentage of the elevator capacity?"

A: yes

Does the sentence "Zhang called his device the 'instrument for measuring the seasonal winds and the movements of the Earth' (Houfeng didong yi ), so-named because he and others thought that earthquakes were most likely caused by the enormous compression of trapped air." provide a valid answer to the question "What is the Chinese name for a seismometer?"

A: yes

Does the sentence "Armour continued to advance, spurred by the increasing power of crossbows, and plate armour was developed to protect soldiers from crossbows as well as the hand-held guns that were developed." provide a valid answer to the question "Along with crossbows, what was plate armor designed to defend against?"

A: yes

Does the sentence "West Berlin, while officially not part of the Federal Republic, was largely integrated and considered as a de facto state." provide a valid answer to the question "What area was initially not apart of the Federal Republic of Germany?"

A:
yes