Table: top500_systems
Columns: rank
rmax_rpeak_pflops
name
vendor
operating_system

Question: What is the name of Rank 5?
SQL: SELECT "name" FROM top500_systems WHERE "rank" = 5

Question: What is the rank of Rmax Rpeak ( Pflops ) of 17.173 20.133?
SQL: SELECT AVG("rank") FROM top500_systems WHERE "rmax_rpeak_pflops" = '17.173 20.133'