user: Question: Name the telephone 052 for area km2  being 5.42
Columns: ['Number', 'Name of administrative unit', 'Telephone (052)', 'Area (km 2 )', 'Population (people)']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Hoàn Lão township', '3862242', '5.42', 7247.0]
SQL:

assistant: SELECT "Telephone (052)" FROM "Table" WHERE "Area (km 2 )" = '5.42';