human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Rank, Common, Population, Area (km 2 ), Density (inhabitants/km 2 ), Altitude (mslm)
###Question: Which common has an area (km2) of 38.38?
gpt
SELECT Common FROM table WHERE Area (km 2 ) = 38.38