is this a run - on sentence? american conductor and composer leonard bernstein, who wrote the musicals west…

is this a run - on sentence? american conductor and composer leonard bernstein, who wrote the musicals west side story and on the town, idolized the austrian conductor and composer gustav mahler. yes no
Answer
Brief Explanations:
A run - on sentence incorrectly joins two or more independent clauses. Here, "American conductor and composer Leonard Bernstein, who wrote the musicals West Side Story and On the Town" is a subject with a relative clause providing extra information, and "idolized the Austrian conductor and composer Gustav Mahler" is the predicate. It is a single, grammatically correct sentence, not multiple independent clauses joined incorrectly.
Answer:
no