human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Rank, City, Population, Area (km 2 ), Density (inhabitants/km 2 ), Altitude (mslm)
###Question: Which Altitude (mslm) is the highest one that has a City of legnano, and a Population larger than 59492?
gpt
SELECT MAX Altitude (mslm) FROM table WHERE City = legnano AND Population > 59492