Where's Foon Yue Tseng's office located at? Give the detailed address.
Detailed address comprises addressLine1 and addressLine2;
SELECT T1.addressLine1, T1.addressLine2 FROM offices AS T1 INNER JOIN employees AS T2 ON T1.officeCode = T2.officeCode WHERE T2.firstName = 'Foon Yue' AND T2.lastName = 'Tseng'