<human>: Does the sentence "In September 1828 Chopin, while still a student, visited Berlin with a family friend, zoologist Feliks Jarocki, enjoying operas directed by Gaspare Spontini and attending concerts by Carl Friedrich Zelter, Felix Mendelssohn and other celebrities." answer the question "When did Chopin visit Berlin?"

OPTIONS:
- yes
- no
<bot>: yes