Sentence:  In the line of operatic trades to cushion the budget , the Dallas Civic Opera will use San Francisco 's new Leni Bauer-Ecsy production of `` Lucia di Lammermoor '' this season , returning the favor next season when <WSD>San</WSD> Francisco uses the Dallas `` Don Giovanni '' , designed by Franco Zeffirelli . 
Meaning of the word marked with <WSD> tags:  a port in western California near the Golden Gate that is one of the major industrial and transportation centers; it has one of the world's finest harbors; site of the Golden Gate Bridge