THE SUBS SAVE A CHANCEY ‘SWAN LAKE’
When a sports team plays with its third string, the results may be miserable. In ballet, not so much. “Swan Lake” is such a long, demanding drama that the Swan Queen and certain others need a couple of nights off, minimum, after performing. So at the third S.F. Ballet performance, such as last Sunday, you might get the No. 3 Swan Queen (newcomer Wona Park), No. 3 hero Siegfried (Wei Wang), and so on. And the evil eagle-like sorcerer Rothbart…