Sentence:  The countrywide success of `` Lazybones '' and `` And the Angels Sing '' could <WSD>only</WSD> lead to Hollywood , where , besides Harold Arlen , Mercer collaborated with Harry Warren , Jimmy Van Heusen , Richard Whiting , Walter Donaldson , Jerome Kern , and Arthur Schwartz . 
Meaning of the word marked with <WSD> tags:  without any others being included or involved