Does the sentence "In addition to the change in the mean length of the calendar year from 365.25 days (365 days 6 hours) to 365.2425 days (365 days 5 hours 49 minutes 12 seconds), a reduction of 10 minutes 48 seconds per year, the Gregorian calendar reform also dealt with the accumulated difference between these lengths." provide a valid answer to the question "With what other difference did the Gregorian calendar concern itself?"

A: yes

Does the sentence "In the wake of the closures and declining revenue from casinos, Governor Christie said in September 2014 that the state would consider a 2015 referendum to end the 40-year-old monopoly that Atlantic City holds on casino gambling and allowing gambling in other municipalities." provide a valid answer to the question "How much was casino revenue in 2013?"

A: no

Does the sentence "With a gross domestic product of $388 billion, Philadelphia ranks ninth among world cities and fourth in the nation." provide a valid answer to the question "Where does it rank in comparison to other US cities in GDP?"

A: yes

Does the sentence "The arrested-recovery system has used an angled deck since the 1950s because, in case the aircraft does not catch the arresting wire, the short deck allows easier take off by reducing the number of objects between the aircraft and the end of the runway." provide a valid answer to the question "What does the angled deck separate the recovery operation area from?"

A:
no