Does the sentence "As of 1751, Albert Kolb writes that "Chinese claims to suzerainty over Tibet date from this time."" provide a valid answer to the question "Who tried to spread their territory into Tibet?"

A: no

Does the sentence "At the height of a revolutionary scare in the United Kingdom in April 1848, Victoria and her family left London for the greater safety of Osborne House, a private estate on the Isle of Wight that they had purchased in 1845 and redeveloped." provide a valid answer to the question "What nation was visited for the first time by Victoria in 1849?"

A: no

Does the sentence "In 1931 a German engineer, Dr Bruno Lange, developed a photo cell using silver selenide in place of copper oxide." provide a valid answer to the question "Who created the first solar cell using silver selenide in place of copper oxide?"

A: yes

Does the sentence "This specific dual form of federalism, with the special position of Brussels, consequently has a number of political issueseven minor onesthat are being fought out over the Dutch/French-language political division." provide a valid answer to the question "What component is the Brussel Region?"

A:
no