Okay!  Can you provide me with a list of all of the city names and which counties they belong to?
select t2.name, t1.name from county_public_safety as t1 join city as t2 on t1.county_id = t2.county_id
Thank you very much! Can you filter this list to show only the cities in the country with the largest population?
select t2.name, t1.name from county_public_safety as t1 join city as t2 on t1.county_id = t2.county_id order by population desc limit 1
Thank you!  Can you update this filtered list to show the total population of this county?
select t1.population from county_public_safety as t1 join city as t2 on t1.county_id = t2.county_id order by population desc limit 1
Awesome!  Finally, can you show me the number of residents per officer for this county?
select t1.residents_per_officer from county_public_safety as t1 join city as t2 on t1.county_id = t2.county_id order by population desc limit 1