Question (Thai):  ผู้ที่ซื้อลำโพง Bose SoundLink ดำเนินการ Ticket ID จำนวนเท่าใด
Question (English): How many ticket ID were conducted by the person who purchased Bose SoundLink Speaker?
Table: customer
Pandas: df[df['Product_Purchased'] == 'Bose SoundLink Speaker'].shape[0]