CREATE TABLE table_5931 ("Country" CLOB, "Project Name" CLOB, "Year startup" CLOB, "Operator" CLOB, "Peak" CLOB)

What was the name of the project that peaked at 40 and was in the USA?
SELECT "Project Name" FROM table_5931 WHERE "Peak" = '40' AND "Country" = 'usa'
SELECT "Project Name" FROM "table_5931" WHERE "Country" = 'usa' AND "Peak" = '40'