Does the sentence "He effected vigorous restoration of crumbling detail of French cathedrals, including the Abbey of Saint-Denis and famously at Notre Dame de Paris, where many of whose most "Gothic" gargoyles are Viollet-le-Duc's." provide a valid answer to the question "What other famous French cathedral did Viollet-le-Duc work on?"

A: yes

Does the sentence "65% of the population was fluent in Russian in 2006, and 38% used it as the main language with family, friends or at work." provide a valid answer to the question "What percent of Ukraine is fluent in Russian as of 2006?"

A: yes

Does the sentence "After a decade of high unemployment rates and depopulation, the city's proximity to the Hibernia, Terra Nova and White Rose oil fields has led to an economic boom that has spurred population growth and commercial development." provide a valid answer to the question "What led to an economic boom in St. John's?"

A: yes

Does the sentence "However, the Hong Kong-based South China Morning Post reported in January 2008 that China was unsatisfied with its role in the Galileo project and was to compete with Galileo in the Asian market." provide a valid answer to the question "How much was China going to invest in the European Galileo positioning system project?"

A:
no