Does the sentence "The New York City Public Schools system, managed by the New York City Department of Education, is the largest public school system in the United States, serving about 1.1 million students in more than 1,700 separate primary and secondary schools." provide a valid answer to the question "How many students are in New York City public schools?"

A: yes

Does the sentence "By 26 March, the growing refusal of soldiers to fire into the largely nonviolent protesting crowds turned into a full-scale tumult, and resulted into thousands of soldiers putting down their arms and joining the pro-democracy movement." provide a valid answer to the question "Thousands of soldiers put their weapons down and joined what type of efforts?"

A: yes

Does the sentence "In 1853 a stagecoach bus line was established joining Montevideo with the newly formed settlement of Union and the first natural gas street lights were inaugurated.[citation needed]" provide a valid answer to the question "Between what years were the first natural gas street lights constructed?"

A: no

Does the sentence "LED companies shifting from using sapphire to silicon should be a minimal investment." provide a valid answer to the question "By using silicon wafers, what is being avoided?"

A:
no