Table: tallest_buildings_jax
Columns: rank
name
street_address
height_feet_m
floors
year

Question: In 1950 what is the average rank?
SQL: SELECT AVG("rank") FROM tallest_buildings_jax WHERE "year" = 1950

Question: What is the building's name that is 617 / 188 in height and ranked less than 6?
SQL: SELECT "name" FROM tallest_buildings_jax WHERE "rank" < 6 AND "height_feet_m" = '617 / 188'